Python with MySQL Connectivity

<div dir="ltr" style="text-align: left;" trbidi="on">Copy the following code and save it as pythondb.py<br /><br /><blockquote class="tr_bq"><i><span style="color: #4c1130;"><b>import MySQLdb<br />db=MySQLdb.connect("localhost","root","password","dbname")<br />cursor=db.cursor()<br /><br />print "1.Insert values in table \n 2.Update values in Table \n 3.Show All \n 4.Delete By Roll.No"<br /><br />def inserts():<br />  i1=input("Enter rno -")<br />  i2=raw_input("Enter Name -")<br />  sql="insert into stud values( '" +str(i1)+ "','"+str(i2)+"')"<br />  cursor.execute(sql)<br />  db.commit()<br />  print "-- Values inserted sucessfully --"<br /><br />def update():<br />  i1=input("Rno to update -")<br />  i2=raw_input("Enter New Name -")<br />  sql="update stud set name ='"+str(i2)+"' where rno= '" +str(i1)+ "'"<br />  cursor.execute(sql)<br />  db.commit()<br />  print "-- Updated sucessfully --"<br /><br />def show():<br />  print "Rno  Name "<br />  sql="select * from stud"<br />  cursor.execute(sql)<br />  result=cursor.fetchall()<br />  for row in result:<br />    rno=row[0]<br />    name=row[1]<br />    print "%d | %s "%(rno,name) <br /><br />def delete():<br />  i1=input("Enter rno to Delete -")<br />  sql="delete from stud where rno='" +str(i1)+ "' "<br />  cursor.execute(sql)<br />  print "-- Deleted  sucessfully --"  <br /><br />while 1:<br /> op=input("Enter your opton:-")<br /><br /> if(op==1):<br />  inserts()<br /> elif(op==2):<br />  update()<br /> elif(op==3):<br />  show() <br /> elif(op==4):<br />  delete()<br /> elif(op==0):<br />  break<br /><br />db.close()</b></span></i></blockquote><br /><i><span style="font-size: large;"><span style="color: #0b5394;"><b><br /></b></span></span></i><i><span style="font-size: large;"><span style="color: #0b5394;"><b>Run it as,</b></span></span></i><br /><br /><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>python filename.py</b></i></span></span></blockquote><br />e.g <b>python pythondb.py</b><br /><br /><br /></div>

Python with MySQL Connectivity

Copy the following code and save it as pythondb.py import MySQLdb db=MySQLdb.connect("localhost","root","password&q...

Read more »

Network Interface using ifconfig

<div dir="ltr" style="text-align: left;" trbidi="on">1. View Network Settings of an Ethernet Adapter<br /><br /><blockquote><span style="color: #4c1130;"><b># ifconfig eth0</b></span></blockquote><br />2. Display Details of All interfaces Including Disabled Interfaces<br /><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><b># ifconfig -a</b></span></blockquote><br />3. Disable an Interface<br /><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><b># ifconfig eth0 down</b></span></blockquote><br />4. Enable an Interface<br /><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><b># ifconfig eth0 up</b></span></blockquote><br />5. Assign ip-address to an Interface<br /><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><b># ifconfig eth0 192.160.2.15</b></span></blockquote><br />6. Change Subnet mask of the interface eth0.<br /><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><b># ifconfig eth0 netmask 255.255.255.0</b></span></blockquote><br />7. Change Broadcast address of the interface eth0.<br /><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><b># ifconfig eth0 broadcast 192.168.2.255</b></span></blockquote><br />8. Assign ip-address, netmask and broadcast at the same time to interface eht0.<br /><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><b># ifconfig eth0 192.168.2.2 netmask 255.255.255.0 broadcast 192.168.2.255</b></span></blockquote><br />9. Change MTU<br /><b><br /></b><br /><blockquote><span style="color: #4c1130;"><b># ifconfig eth0 mtu XX</b></span></blockquote><br />10. Promiscuous mode<br /><br /><br /><blockquote class="tr_bq"><b>Following will put the interface in promiscuous mode.</b><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><b># ifconfig eth0 promisc</b></span></blockquote><br /><b>Following will put the interface in normal mode</b><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><b># ifconfig eth0 -promisc</b></span></blockquote></blockquote><br /><br />11. Display Existing Routes<br /><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><b>$ route</b><br /><br /><b>$ route -n</b></span></blockquote><br />12. Adding a Default Gateway<br /><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><b>$ route add default gw 192.168.1.10</b></span><br /><span style="color: #4c1130;"></span><br /><span style="color: #4c1130;"><b>$ ping www.google.com</b></span></blockquote><br />13. List Kernel’s Routing Cache Information<br /><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><b>$ route -Cn</b></span></blockquote><br />14. Reject Routing to a Particular Host or Network<br /><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><b>$ route add -host 192.168.1.51 reject</b><br /><br /><b>$ ping 192.168.1.51</b></span></blockquote><br />reject an entire network<br /><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><b>$ route add -net 192.168.1.0 netmask 255.255.255.0 reject</b></span></blockquote><br />15. Make 192.168.3.* Accessible from 192.168.1.*<br /><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><b>$ route add default gw 192.168.1.10</b><br /><br /><b>$ route add -net 192.168.3.0 netmask 255.255.255.0 gw 192.168.3.10</b></span></blockquote><br />16. Make 192.168.1.* Accessible from 192.168.3.*<br /><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><b>$ route add default gw 192.168.3.10</b></span><br /><span style="color: #4c1130;"></span><br /><span style="color: #4c1130;"><b>$ route add -net 192.168.1.0 netmask 255.255.255.0 gw 192.168.1.10</b></span></blockquote><br />17. Allow Internet Access ( External World )<br /><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><b>$ route add default gw 125.250.60.59</b></span></blockquote><br /></div>

Network Interface using ifconfig

1. View Network Settings of an Ethernet Adapter # ifconfig eth0 2. Display Details of All interfaces Including Disabled Interfaces # ifconfi...

Read more »

GUI Programming with Python

<div dir="ltr" style="text-align: left;" trbidi="on"><span style="font-size: large;"><b><i><span style="color: #0b5394;"> Install Python and python tk by</span></i></b></span><br /><span style="font-size: large;"><b><i><span style="color: #0b5394;"><br /></span></i></b></span><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>sudo apt-get install python python-tk</b></i></span></span><span style="font-size: large;"><b><i><span style="color: #0b5394;"><br /></span></i></b></span></blockquote></blockquote><br /><span style="font-size: large;"><b><i><span style="color: #0b5394;">To Run Python</span></i></b></span><br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><i><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>python filename.py</b></span></span></i></blockquote></blockquote><br />e.g <b>python tkhello.py</b><br /><br /><br /><span style="color: #0b5394;"><i><span style="font-size: large;"><b>1. Simple Hello World program</b></span></i></span><br /><br /><blockquote class="tr_bq"><b><br /></b><span style="color: #4c1130;"><i><b>import Tkinter <br />top=Tkinter.Tk() <br />label=Tkinter.Label(top,text="hello world") <br />label.pack() <br />Tkinter.mainloop()</b></i></span></blockquote><br /><br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiC6V2EB7jZBObiFUvMkjMWeSo322GnDk172aPd76TCP5dNDgM9vXKn1Urj6AYN4wctYSuAT5BffDMbGj9Krv4mD53rrbtmAu5Zr9hLSIzPol4MRSasMBE4tlrbhWDAvkRp-1OO1uNEnVc/s1600/pythontk.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiC6V2EB7jZBObiFUvMkjMWeSo322GnDk172aPd76TCP5dNDgM9vXKn1Urj6AYN4wctYSuAT5BffDMbGj9Krv4mD53rrbtmAu5Zr9hLSIzPol4MRSasMBE4tlrbhWDAvkRp-1OO1uNEnVc/s1600/pythontk.png" /></a></div><br /><br /><span style="color: #0b5394;"><i><span style="font-size: large;"><b>2. Program with exit button</b></span></i></span><br /><br /><blockquote class="tr_bq"><i><span style="color: #4c1130;"><b>import Tkinter <br />top=Tkinter.Tk() <br />hello=Tkinter.Label(top,text="hello"); <br />hello.pack() <br />quit=Tkinter.Button(top,text="quit",command =top.quit,bg="red",fg="white") <br />quit.pack(fill=Tkinter.X,expand=1) <br />Tkinter.mainloop()</b></span></i></blockquote><br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_XAGDJSX0KeTZML8gbWnfJO4eS_wMp4X2qGRHh0LfOqv7ZjLFgcJSwHoKQK5s4GqyuuYZcCApV_PrHKpYDcJu8isL9lBASR9_lhuUgRS4t1zsvhObPfAtX4vd6adkjJPG41TuA7co3CI/s1600/pythontk2.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_XAGDJSX0KeTZML8gbWnfJO4eS_wMp4X2qGRHh0LfOqv7ZjLFgcJSwHoKQK5s4GqyuuYZcCApV_PrHKpYDcJu8isL9lBASR9_lhuUgRS4t1zsvhObPfAtX4vd6adkjJPG41TuA7co3CI/s1600/pythontk2.png" /></a></div><br /><br /><br /></div>

GUI Programming with Python

 Install Python and python tk by sudo apt-get install python python-tk To Run Python python filename.py e.g python tkhello.py 1. Simple Hell...

Read more »

PHP with MySQL Connectivity

<div dir="ltr" style="text-align: left;" trbidi="on"><br />To run PHP you must be install LAMP server in your computer. <br /><span style="color: #0b5394;"><i><span style="font-size: large;"><b><span style="color: #274e13;">Install LAMP server ==></span> <a href="http://easytricksportal.blogspot.in/2013/09/how-to-install-lamp-server-on-ubuntu.html" target="">LAMP INSTALLATION</a> </b></span></i></span><br /><br /><br /><u><span style="color: #0b5394;"><i><span style="font-size: large;"><b><span style="color: #783f04;">Create the following 4 files</span>.</b></span></i></span></u><br /><span style="color: #0b5394;"><i><span style="font-size: large;"><b> </b></span></i></span><br /><span style="color: #0b5394;"><i><span style="font-size: large;"><b>register_form.html</b></span></i></span><br /><br /><blockquote class="tr_bq"><b><br /></b><span style="color: #4c1130;"><i><b><!Doctype html></b></i></span><br /><span style="color: #4c1130;"><i><b><html></b></i></span><br /><span style="color: #4c1130;"><i><b><title>Registration form</title></b></i></span><br /><span style="color: #4c1130;"><i><b><h1>Registration  form</h1></b></i></span><br /><span style="color: #4c1130;"><i><b><form action="insert.php" method="post"></b></i></span><br /><span style="color: #4c1130;"><i><b>Name:<input type="text" name="name" /><br></b></i></span><br /><span style="color: #4c1130;"><i><b>password:<input type="text" name="pas"/><br></b></i></span><br /><span style="color: #4c1130;"><i><b>Address: <br></b></i></span><br /><span style="color: #4c1130;"><i><b><textarea name="addr" rows="6" cols="30"></textarea></b></i></span><br /><span style="color: #4c1130;"><i><b><input type="submit" value="submit" /></b></i></span><br /><span style="color: #4c1130;"><i><b></form></b></i></span><br /><span style="color: #4c1130;"><i><b></html></b></i></span></blockquote><br /><span style="color: #0b5394;"><b><i><span style="font-size: large;"><br /></span></i></b></span><span style="color: #0b5394;"><b><i><span style="font-size: large;">insert.php</span></i></b></span><br /><br /><blockquote class="tr_bq"><i><span style="color: #4c1130;"><b><br /></b></span></i><i><span style="color: #4c1130;"><b><?php </b></span></i><br /><i><span style="color: #4c1130;"><b></b></span></i><br /><i><span style="color: #4c1130;"><b>mysql_connect("localhost","root","password") or die ("");</b></span></i><br /><i><span style="color: #4c1130;"><b>mysql_select_db("dbname");</b></span></i><br /><i><span style="color: #4c1130;"><b>$name =$_POST['name'];</b></span></i><br /><i><span style="color: #4c1130;"><b>$pas = $_POST['pas'];</b></span></i><br /><i><span style="color: #4c1130;"><b>$addr = $_POST['addr'];</b></span></i><br /><i><span style="color: #4c1130;"><b></b></span></i><br /><i><span style="color: #4c1130;"><b>$sql="insert into log values('$name','$pas','$addr') ";</b></span></i><br /><i><span style="color: #4c1130;"><b>mysql_query($sql);</b></span></i><br /><i><span style="color: #4c1130;"><b></b></span></i><br /><i><span style="color: #4c1130;"><b>header("location:register_form.html");</b></span></i><br /><i><span style="color: #4c1130;"><b>?> </b></span></i></blockquote><br /><span style="color: #0b5394;"><i><b><span style="font-size: large;">main.html</span></b></i></span><br /><blockquote class="tr_bq"><i><b><span style="color: #4c1130;"><br /></span></b></i><i><b><span style="color: #4c1130;"><!Doctype html></span></b></i><br /><i><b><span style="color: #4c1130;"><html></span></b></i><br /><i><b><span style="color: #4c1130;"><title>Login form</title></span></b></i><br /><i><b><span style="color: #4c1130;"><h1>Login  form</h1></span></b></i><br /><i><b><span style="color: #4c1130;"><form action="check.php" method="post"></span></b></i><br /><i><b><span style="color: #4c1130;">Name:<input type="text" name="name" /><br></span></b></i><br /><i><b><span style="color: #4c1130;">password:<input type="text" name="pas"/><br></span></b></i><br /><i><b><span style="color: #4c1130;"><input type="submit" value="submit" /></span></b></i><br /><i><b><span style="color: #4c1130;"></form></span></b></i><br /><i><b><span style="color: #4c1130;"></html></span></b></i></blockquote><br /><br /><i><span style="font-size: large;"><span style="color: #0b5394;"><b>check.php</b></span></span></i><br /><blockquote class="tr_bq"><br /><span style="color: #4c1130;"><i><b><?php </b></i></span><br /><span style="color: #4c1130;"><i><b><br /></b></i></span><span style="color: #4c1130;"><i><b>mysql_connect("localhost","root","password") or die ("");</b></i></span><br /><span style="color: #4c1130;"><i><b>mysql_select_db("dbname");</b></i></span><br /><span style="color: #4c1130;"><i><b>$name =$_POST['name'];</b></i></span><br /><span style="color: #4c1130;"><i><b>$pas = $_POST['pas'];</b></i></span><br /><span style="color: #4c1130;"><i><b><br /></b></i></span><span style="color: #4c1130;"><i><b>$sql = "select * from log where name='$name' and password='$pas' ";</b></i></span><br /><span style="color: #4c1130;"><i><b>$result=mysql_query($sql);</b></i></span><br /><span style="color: #4c1130;"><i><b>$count=mysql_num_rows($result);</b></i></span><br /><span style="color: #4c1130;"><i><b><br /></b></i></span><span style="color: #4c1130;"><i><b>if($count == 1)</b></i></span><br /><span style="color: #4c1130;"><i><b> echo "Welcome ,logged in sucessfully";</b></i></span><br /><span style="color: #4c1130;"><i><b>else </b></i></span><br /><span style="color: #4c1130;"><i><b> echo "<font color='red'>Wrong username 0r password</font>";</b></i></span><br /><span style="color: #4c1130;"><i><b>?></b></i></span></blockquote><i><br /></i><i><span style="color: #783f04;"><b>Note: Chang dbname as your database name and password as your MySQL password.</b></span></i><br /><br />After created these 4 files, open terminal and type<br /><br /><blockquote class="tr_bq"><i><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>sudo nautilus</b></span></span></i></blockquote><br />Now copy these 4 files and paste under <b>/var/www/ </b>folder and close it.<br /><br />Open browser and type<br /><br /><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>http://localhost/register_form.html </b></i></span></span></blockquote><br />Register your details and submit.<br /><br />Again type<br /><br /><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>http://localhost/main.html</b></i></span></span></blockquote><br />then enter username and password which is you registered, and press submit to check the database connectivity. Enjoy!!!</div>

PHP with MySQL Connectivity

To run PHP you must be install LAMP server in your computer. Install LAMP server ==> LAMP INSTALLATION Create the following 4 files .  ...

Read more »

GUI Programming using PERL-TK

<div dir="ltr" style="text-align: left;" trbidi="on"><i><span style="font-size: large;"><span style="color: #0b5394;"><b><a href="http://en.wikipedia.org/wiki/Perl" target="_blank">Perl </a>- </b></span><span style="color: #274e13;"><b><span style="color: #0b5394;">P</span>ractical <span style="color: #0b5394;">E</span>xtraction and <span style="color: #0b5394;">R</span>eport <span style="color: #0b5394;">L</span>anguage</b></span></span></i><br /><br />Perl is an interpreted scripting language.<br /><br />Perl is optimised for scanning arbitrary text files and system administration.<br /><br />It has built-in extended regular expression matching and replacement, a data-flow mechanism to improve security with setuid scripts and is extensible via modules that can interface to C libraries.<br /><i><span style="font-size: large;"><span style="color: #0b5394;"><b> </b></span></span></i><br /><br /><i><span style="font-size: large;"><span style="color: #0b5394;"><b>Installation :</b></span></span></i><br /><br /><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>sudo apt-get install perl   </b></i></span></span></blockquote><br /><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>sudo apt-get install perl-tk</b></span></span> </blockquote><br /><br /><span style="color: #0b5394;"><span style="font-size: large;"><i><b>Compiling method :</b></i></span></span><br /><br /><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>perl filename.pl</b></i></span></span></blockquote><br />e.g<b> perl hello.pl </b><br /><br /><br /><br /><span style="color: #0b5394;"><i><span style="font-size: large;"><b>1. Simple Hello World Program</b></span></i></span><br /><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><i><b>use Tk; <br />my $mk=MainWindow->new; <br />my $label=$mk->Label(-text=>'hello world')->pack; <br />my $label=$mk->Button(-text=>'quit',-command=>\&exit_program)->pack; <br />MainLoop; <br />sub exit_program <br />{ <br />  $mk->Messagebox(-Message=>'goodbye'); <br />  exit; <br />}</b></i></span></blockquote><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhnSjiK6jXrbMG1DCEcmMAMajVhAXvbrqmRBkyFwbZJXVMf4FhLYuDRACCdmu_wmDxSSDY0RxfRWWwq3QyxkQ5YYt5ydAhhPaOEQFWoaZ22rpgqHuSQ4D51pxDysR1tdeYhrTrHVVjFD0A/s1600/perltk1.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhnSjiK6jXrbMG1DCEcmMAMajVhAXvbrqmRBkyFwbZJXVMf4FhLYuDRACCdmu_wmDxSSDY0RxfRWWwq3QyxkQ5YYt5ydAhhPaOEQFWoaZ22rpgqHuSQ4D51pxDysR1tdeYhrTrHVVjFD0A/s1600/perltk1.png" /></a></div><br /><br /><span style="color: #0b5394;"><i><span style="font-size: large;"><b>2.  Simple Insertion Program with Push Button</b></span></i></span><br /><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><i><b>use Tk; <br />my $mw=MainWindow->new; <br />my $ent=$mw->Entry()->pack(); <br />my $but=$mw->Button(-text=>"pushme",-command=>\&push_button); <br />$but->pack; <br />MainLoop; <br />sub push_button <br />{ <br />$ent->insert('end',"hello"); <br />}</b></i></span></blockquote><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhczKapk7D6nFnHuI5WKkmkDHt3NBH0LEGHxEFB6ZxsBeshftpZN1VlpGkrh60YbDiLWqn8Pkvft2jj-fhAQoKm7cchRZKM1EiNzjZaXcI7HmCCAdQi1aCuXqO6KIrq4YzlcP0uR6ZSS_8/s1600/perltk2.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhczKapk7D6nFnHuI5WKkmkDHt3NBH0LEGHxEFB6ZxsBeshftpZN1VlpGkrh60YbDiLWqn8Pkvft2jj-fhAQoKm7cchRZKM1EiNzjZaXcI7HmCCAdQi1aCuXqO6KIrq4YzlcP0uR6ZSS_8/s1600/perltk2.png" /></a></div><br /></div>

GUI Programming using PERL-TK

Perl - P ractical E xtraction and R eport L anguage Perl is an interpreted scripting language. Perl is optimised for scanning arbitrary text...

Read more »

Perl with MySQL Database Connectivity

<div dir="ltr" style="text-align: left;" trbidi="on"><i><span style="font-size: large;"><span style="color: #0b5394;"><b><a href="http://en.wikipedia.org/wiki/Perl" target="_blank">Perl </a>- </b></span><span style="color: #274e13;"><b><span style="color: #0b5394;">P</span>ractical <span style="color: #0b5394;">E</span>xtraction and <span style="color: #0b5394;">R</span>eport <span style="color: #0b5394;">L</span>anguage</b></span></span></i><br /><br />Perl is an interpreted scripting language.<br /><br />Perl is optimised for scanning arbitrary text files and system administration. <br /><br />It has built-in extended regular expression matching and replacement, a data-flow mechanism to improve security with setuid scripts and is extensible via modules that can interface to C libraries.<br /><i><span style="font-size: large;"><span style="color: #0b5394;"><b> </b></span></span></i><br /><br /><i><span style="font-size: large;"><span style="color: #0b5394;"><b>Installation :</b></span></span></i><br /><br /><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>sudo apt-get install perl</b></i></span></span></blockquote><br /><span style="color: #0b5394;"><span style="font-size: large;"><i><b>Compiling method :</b></i></span></span><br /><br /><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>perl filename.pl</b></i></span></span></blockquote><br />e.g<b> perl hello.pl </b><br /><br /><br /><span style="color: #0b5394;"><i><span style="font-size: large;"><b>Perl with MySQL Database Connectivity</b></span></i></span><br /><b> </b><br /><b><br /></b><blockquote><i><span style="color: #4c1130;"><b>use DBI;</b><br /><b>use feature qw(switch);</b><br /><b>my $dbh = DBI-> connect ("dbi:mysql:dbname","root","password");</b><br /><b>print "\n 1.Insert  2.Update 3.Delete 4.Show\n Enter the option: ";</b><br /><b>$n = <STDIN>;</b><br /><b>given($n){</b><br /><b>when(1) {&insert;}</b><br /><b>when(2) {&update;}</b><br /><b>when(3) {&deletes;}</b><br /><b>when(4) {&selects;}</b><br /><b>}</b><br /><b>sub insert{</b><br /><b>$sth= $dbh->prepare("insert into studtbl values(22,'gopi','IV','male')");</b><br /><b>$sth-> execute();</b><br /><b>}</b><br /><b>sub update{</b><br /><b>$sth2= $dbh->prepare("update studtbl set rno=561 where nme='faith' ");</b><br /><b>$sth2-> execute();</b><br /><b>}</b><br /><b>sub deletes {</b><br /><b>$sth3= $dbh->prepare("delete from studtbl where rno='222' ");</b><br /><b>$sth3-> execute();}</b><br /><br /><b>sub selects{</b><br /><b>$sth4=$dbh->prepare("select * from studtbl");</b><br /><b>$sth4-> execute();</b><br /><b>while (@results = $sth4->fetchrow()) {</b><br /><b>    print $results[0].",".$results[1].",".$results[2].",".$results[3]." \n";</b><br /><b>}</b><br /><b>}</b><br /><br /><b>$dbh-> disconnect();</b></span></i></blockquote><b><br /> </b><br /><b>Note :  </b>Look this 3rd line in the above program.<br /><br /><span style="color: #351c75;"><i><b>my $dbh = DBI-> connect ("dbi:mysql:dbname","root","password");</b></i></span><br /><br /><span style="color: #351c75;"><i><b>In this line change dbname as your database name and change password as your MySQL database password.</b></i></span><br /><br /><i><span style="color: #4c1130;"><b><br /></b></span></i><i><span style="font-size: large;"><span style="color: #0b5394;"><b>Table Creation in Mysql</b></span></span></i><br /><br /><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>mysql -u root -p </b></i></span></span></blockquote><b><br /></b><span style="color: #274e13;"><b>Check the screenshot to create table</b></span><br /><br /><br /><div class="separator" style="clear: both; text-align: center;"><b><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjvU-T24eFvAiiiSTn4xd3XNnClImNK5mm_xSqtZpLmOZZSJlDVWOsMdrXpMhdJq9t5E9T3fLTIUn3KQWpUe9qoeqCf3qmBiIAVvHCXl-2CaTrq0wL13Ua4LRPfZ1eoJhTrCYAR0YJvYo/s1600/perldb1.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjvU-T24eFvAiiiSTn4xd3XNnClImNK5mm_xSqtZpLmOZZSJlDVWOsMdrXpMhdJq9t5E9T3fLTIUn3KQWpUe9qoeqCf3qmBiIAVvHCXl-2CaTrq0wL13Ua4LRPfZ1eoJhTrCYAR0YJvYo/s1600/perldb1.png" /></a></b></div><br /><br /><b><br /></b><b>Before Insertion</b><br /><b><br /></b><div class="separator" style="clear: both; text-align: center;"></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgufTR9lNoBjD0HRs94KaEuaSYwwg1Bq47jWswfD35mNRHiLqkRbnwAei78D7_acbvBHqtDe-DcG7ZguUUFzfbS3LoJ6ZbJVczWgMkTgqw2_O7lm8gmECz5yq0ozFwcqMxLcWf0Ce0oEP8/s1600/perldb2.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgufTR9lNoBjD0HRs94KaEuaSYwwg1Bq47jWswfD35mNRHiLqkRbnwAei78D7_acbvBHqtDe-DcG7ZguUUFzfbS3LoJ6ZbJVczWgMkTgqw2_O7lm8gmECz5yq0ozFwcqMxLcWf0Ce0oEP8/s1600/perldb2.png" /></a></div><b><br /></b><b>After Insertion</b><br /><b><br /></b><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEim4WlU8imfaBFCVceTlL6Usgi0Vr3buHIGb2cRIcKssKHdyLuqc2RK9cicpVR6-zMEEYUbc1OSaaSUdlsxuFRLvt92sHd7zaYbuWoIRGOD3m6AzjHEbeRiqGc07Wdc4S05IhOXHo1VSFs/s1600/perldb3.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEim4WlU8imfaBFCVceTlL6Usgi0Vr3buHIGb2cRIcKssKHdyLuqc2RK9cicpVR6-zMEEYUbc1OSaaSUdlsxuFRLvt92sHd7zaYbuWoIRGOD3m6AzjHEbeRiqGc07Wdc4S05IhOXHo1VSFs/s1600/perldb3.png" /></a></div><b><br /></b><b><br /></b><b>After Updating </b><br /><b><br /></b><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFuwUnQosWiZBRGt5n-F71NI2QfW8huapIC_JYhr3tj0ZTqLWYQV2qo2v9kJ62AOuxZEsUXNCALW_r6-gQ9qPQboFj2W0M8E2P5H-QQd_hlylsWHzaurPSYmCTTTgPVOoWkBclz9YCbgw/s1600/perldb4.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFuwUnQosWiZBRGt5n-F71NI2QfW8huapIC_JYhr3tj0ZTqLWYQV2qo2v9kJ62AOuxZEsUXNCALW_r6-gQ9qPQboFj2W0M8E2P5H-QQd_hlylsWHzaurPSYmCTTTgPVOoWkBclz9YCbgw/s1600/perldb4.png" /></a></div><b><br /></b><b>After Deleting</b><br /><b><br /></b><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEipBRI6Fys-eFo0Qb6rj5-lvPWsl3LMq8hhd9Wo_4uLrThcs2Chdlw8D6YPwJzL6lSpMKJka5fGlHCKWj-0hqS-8avXAZIug6VBf456MI9fcHIGhS62E0KfqV9ASSkeaFohkjitNfs7bRQ/s1600/perldb5.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEipBRI6Fys-eFo0Qb6rj5-lvPWsl3LMq8hhd9Wo_4uLrThcs2Chdlw8D6YPwJzL6lSpMKJka5fGlHCKWj-0hqS-8avXAZIug6VBf456MI9fcHIGhS62E0KfqV9ASSkeaFohkjitNfs7bRQ/s1600/perldb5.png" /></a></div><b><br /></b><b>Display all details in table</b><br /><b><br /></b><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEisL1cB8nJRpHPIDPCW0apP8vucVGCcbDh4wQlt4j4BS3uSZqVWh9QO5FyOc2BDbGfDTHNHlvQc-f46eUgbYKAbrKj34ZNqrSRnGdVXdvBchdeQS7Fwtykh52wdhpEpzIeKmX5fLg1snBk/s1600/perldb.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEisL1cB8nJRpHPIDPCW0apP8vucVGCcbDh4wQlt4j4BS3uSZqVWh9QO5FyOc2BDbGfDTHNHlvQc-f46eUgbYKAbrKj34ZNqrSRnGdVXdvBchdeQS7Fwtykh52wdhpEpzIeKmX5fLg1snBk/s1600/perldb.png" /></a></div><b><br /></b></div>

Perl with MySQL Database Connectivity

Perl - P ractical E xtraction and R eport L anguage Perl is an interpreted scripting language. Perl is optimised for scanning arbitrary text...

Read more »

Simple Perl Programs

<div dir="ltr" style="text-align: left;" trbidi="on"><i><span style="font-size: large;"><span style="color: #0b5394;"><b><a href="http://en.wikipedia.org/wiki/Perl" target="_blank">Perl </a>- </b></span><span style="color: #274e13;"><b><span style="color: #0b5394;">P</span>ractical <span style="color: #0b5394;">E</span>xtraction and <span style="color: #0b5394;">R</span>eport <span style="color: #0b5394;">L</span>anguage</b></span></span></i><br /><br />Perl is an interpreted scripting language.<br /><br />Perl is optimised for scanning arbitrary text files and system administration.<br /><br />It has built-in extended regular expression matching and replacement, a data-flow mechanism to improve security with setuid scripts and is extensible via modules that can interface to C libraries.<br /><i><span style="font-size: large;"><span style="color: #0b5394;"><b> </b></span></span></i><br /><br /><i><span style="font-size: large;"><span style="color: #0b5394;"><b>Installation :</b></span></span></i><br /><br /><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>sudo apt-get install perl</b></i></span></span></blockquote><br /><span style="color: #0b5394;"><span style="font-size: large;"><i><b>Compiling method :</b></i></span></span><br /><br /><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>perl filename.pl</b></i></span></span></blockquote><br />e.g<b> perl hello.pl </b><br /><br /><br /><span style="color: #274e13;"><i><span style="font-size: large;"><b>1. Simple mathematical calculation program</b></span></i></span><br /><blockquote class="tr_bq"><br /><span style="color: #4c1130;"><i><b> #usr/bin/perl<br />$str = " Hello ";<br />print "cse:$str \n";<br />print "2+2 = ",2+2,"\n";<br />print "log(1e23) = ",log(1e23),"\n";<br />print "sin(3.141) = ",sin(3.141), "\n";</b></i></span></blockquote><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmuckwdMwJ4hhdZUWae3uUvFEcbjgzngcamPFYLaWEzgLnn_b8CAPrFSmymTOKD0xrGLlotw-KGD1mYr16UaQ0BULbbyWnfUQ8JtLUIQgQlzni1MOF0YBZ7GAAh7-3FmdJCTcaK4xakps/s1600/plhello.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmuckwdMwJ4hhdZUWae3uUvFEcbjgzngcamPFYLaWEzgLnn_b8CAPrFSmymTOKD0xrGLlotw-KGD1mYr16UaQ0BULbbyWnfUQ8JtLUIQgQlzni1MOF0YBZ7GAAh7-3FmdJCTcaK4xakps/s1600/plhello.png" /></a></div><br /><span style="color: #274e13;"><i><span style="font-size: large;"><b><br /></b></span></i></span><span style="color: #274e13;"><i><span style="font-size: large;"><b>2. Pattern Matching Program</b></span></i></span><br /><br /><span style="color: #4c1130;"><i><b><br /></b></i></span><br /><blockquote><span style="color: #4c1130;"><i><b> $_="hello how are you";</b></i></span><br /><span style="color: #4c1130;"><i><b>if(/hello/){</b></i></span><br /><span style="color: #4c1130;"><i><b>print "Default Variable = $_ \n";</b></i></span><br /><span style="color: #4c1130;"><i><b>print "Found hello \n";</b></i></span><br /><span style="color: #4c1130;"><i><b>}</b></i></span><br /><span style="color: #4c1130;"><i><b># i modifier ignore case difference</b></i></span><br /><span style="color: #4c1130;"><i><b>if(m/HOw/i){</b></i></span><br /><span style="color: #4c1130;"><i><b>print "found how \n";</b></i></span><br /><span style="color: #4c1130;"><i><b>}</b></i></span><br /><span style="color: #4c1130;"><i><b>#match with negation</b></i></span><br /><span style="color: #4c1130;"><i><b>if(!/hall/){</b></i></span><br /><span style="color: #4c1130;"><i><b>print "Not found hall \n";</b></i></span><br /><span style="color: #4c1130;"><i><b>}</b></i></span><br /><span style="color: #4c1130;"><i><b>else {</b></i></span><br /><span style="color: #4c1130;"><i><b> print "found\n"; }</b></i></span></blockquote><br /><br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgj0CSJ70w3SOs2BcSxa1r8JHQSgBCKK7xnAH1s_0Xg56kRyckFWj1XDZXS5O7otfo4e_mBHmudLSlpDRjDEdlqCqlOHG0mQVkkq_5CoVeWDWZ_LcOpsomaPcXP0qk-B3ZPeRvbRq6WCQc/s1600/plpattern.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgj0CSJ70w3SOs2BcSxa1r8JHQSgBCKK7xnAH1s_0Xg56kRyckFWj1XDZXS5O7otfo4e_mBHmudLSlpDRjDEdlqCqlOHG0mQVkkq_5CoVeWDWZ_LcOpsomaPcXP0qk-B3ZPeRvbRq6WCQc/s1600/plpattern.png" /></a></div><br /><br /><i><span style="color: #274e13;"><span style="font-size: large;"><b>3. System Command Accepting Program</b></span></span></i><br /><blockquote class="tr_bq"><b><br /></b><span style="color: #4c1130;"><i><b>$time = localtime;<br />print "Time is now - $time \n";<br />print "Enter a shell command:";<br />$n = <STDIN>;<br />system $n;</b></i></span></blockquote><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhEMHTAx2sAG0LjDoTcAY_soXRZOha9Il8YRKrimG6a_JjVf8pBikj1izjqGHm9g3k-SuFDDaWJewplrSUtkozSkntngRA9fDiT139NCXf5R7M3XduOje3jMIXnp9ubmJ7c5OwGEDgo0fM/s1600/plcmd.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhEMHTAx2sAG0LjDoTcAY_soXRZOha9Il8YRKrimG6a_JjVf8pBikj1izjqGHm9g3k-SuFDDaWJewplrSUtkozSkntngRA9fDiT139NCXf5R7M3XduOje3jMIXnp9ubmJ7c5OwGEDgo0fM/s1600/plcmd.png" /></a></div><br /><br /><span style="color: #274e13;"><i><span style="font-size: large;"><b>4. Program for Counting Words, Lines and Characters in a File</b></span></i></span><br /><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><i><b>#usr/bin/perl<br />$filen = "fileh.pl";<br />open($fh,"<",$filen);<br />while($line = <$fh>){<br />@lines = [split(/ +/,$line)];<br />$noline += scalar(@lines);<br />$words += scalar(split(/\w+/,$line));<br />$chars += length($line);<br />}<br />print "\n No.of Lines - $noline \n<br />       No.of Words - $words \n <br />       No.of Characters - $chars \n";  <br />close($fh);</b></i></span></blockquote><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg41oMrMC5sht2ESq3xu1ynO8HBmCufGyRIURIY2J0XBKSItoVRzUN-IjNBfWA_AF_dUfE6V7a_OQHznsYHvclJaF3phNXqR_pqjQyYvrfMK6elLtG-LkAugt7szCnCElf5RYsqsu8NhDo/s1600/plfile.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg41oMrMC5sht2ESq3xu1ynO8HBmCufGyRIURIY2J0XBKSItoVRzUN-IjNBfWA_AF_dUfE6V7a_OQHznsYHvclJaF3phNXqR_pqjQyYvrfMK6elLtG-LkAugt7szCnCElf5RYsqsu8NhDo/s1600/plfile.png" /></a></div><br /><br /><i><span style="color: #274e13;"><span style="font-size: large;"><b>5. Program for Printing all 5 letter words in Paragraph by giving as it as input</b></span></span></i><br /><blockquote class="tr_bq"><span style="color: #4c1130;"><b><br /></b></span><span style="color: #4c1130;"><b>print "Enter a text:";<br />while(<>){<br />chop;<br />tr/;:;.!?-//d;<br />foreach $w (split) {<br />  if(length($w)==5) {<br />    print "$w \n";<br />    $score++;<br />          }<br />    }}</b></span></blockquote><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi2iMNtB9vV05IDCRzBHhOhCQR7XZQ_RD50GCS05_NtP2uFddjiWLge9O8cZOjv9vzLOjd4GDs-kEATaVbu4A1jbj5JwgKGTbAYOR1zNaN9kzriGpaE8zIhWxwp6tXto9kcu5hx3jsV8xA/s1600/plcount5LetterWords.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi2iMNtB9vV05IDCRzBHhOhCQR7XZQ_RD50GCS05_NtP2uFddjiWLge9O8cZOjv9vzLOjd4GDs-kEATaVbu4A1jbj5JwgKGTbAYOR1zNaN9kzriGpaE8zIhWxwp6tXto9kcu5hx3jsV8xA/s1600/plcount5LetterWords.png" /></a></div><br /><span style="color: #274e13;"><i><span style="font-size: large;"><b>6. Program for Printing the words which are all end with "ly"</b></span></i></span><br /><br /><b><br /></b><br /><blockquote><i><span style="color: #4c1130;"><b>print "Enter the text:";</b><br /><b>while (<>) {</b><br /><b>   foreach $wd(split){</b><br /><b>       if($wd =~ /ly$/i) {</b><br /><b>         print " $wd \n";         </b><br /><b>         $var++;       </b><br /><b>            } </b><br /><b>         }}</b></span></i></blockquote>  <br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg15C7uZzEtvWyFOds5Tzi2VgP2I_z6s_faxPQOmdeaxhcJobJ85M1k85xSwu7YNUrckZP8ZZ5d9BZCcSqtTj8SiO0eyn3SIBRgnTNwdOETW2jteEytY9EgeeV3xqXs0ISC2iMZ4GJEJ-Q/s1600/pl-lyCOunts.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg15C7uZzEtvWyFOds5Tzi2VgP2I_z6s_faxPQOmdeaxhcJobJ85M1k85xSwu7YNUrckZP8ZZ5d9BZCcSqtTj8SiO0eyn3SIBRgnTNwdOETW2jteEytY9EgeeV3xqXs0ISC2iMZ4GJEJ-Q/s1600/pl-lyCOunts.png" /></a></div><br /><i><span style="color: #0b5394;"><span style="font-size: large;"><b>7. Program to find average length of words in a text.</b></span></span></i><br /><br /><br />#! usr/bin/perl<br />use strict;<br />open (FILE,"wel.txt") or die "error in open wel.txt";<br /><br />my $TSentences=0;<br />my $TWords=0;<br />my $TLetters=0;<br />my $AvgWordLength=0;<br />my $AvgSentenceLength=0;<br /><br />while(my $line=<FILE>)<br />{<br />my @words=split(" ",$line);<br />my $nwords=@words;#no of words in that line<br />for(my $i=0;$i< $nwords;$i=$i+1)<br />{<br />          my @letters=split("",$words[$i]);<br />          my $nletters=@letters;<br />          $TLetters=$TLetters+$nletters;<br />        }<br />$TWords=$TWords+$nwords;<br />$AvgWordLength=$TLetters/$TWords;<br />}<br /><br />print("Total Words:$TWords\n");<br />print("Total letters:$TLetters\n\n");<br />print("The average word length (in characters):$AvgWordLength\n ");<br />close(FILE);<br />open (FILE,"wel.txt") or die "error in open wel.txt";<br /><br />while(my $ch=getc(FILE))<br />{<br />  if($ch eq "." || $ch eq "!" || $ch eq "?")<br />{<br />     $TSentences=$TSentences+1;<br />  }<br />}<br />$AvgSentenceLength=$TWords/$TSentences;<br />print("Total sentences:$TSentences\n");<br />print("The average sentence length (in words):$AvgSentenceLength \n");<br /><br />exit(0);<br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjrYHFCOIg7Ygpbe4V602ZqN5rTHUi1JfpYnS98xneyqcZ5c6ZkWAzGe5R5C5gBROPoipJ99XsrSs2JNeO8qGef0PDt8rTFd8MoiSMQuFDZ53Fw2GLhyYn9xgqx64d-wyiU0R8HGnBEjwU/s1600/plavgword.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjrYHFCOIg7Ygpbe4V602ZqN5rTHUi1JfpYnS98xneyqcZ5c6ZkWAzGe5R5C5gBROPoipJ99XsrSs2JNeO8qGef0PDt8rTFd8MoiSMQuFDZ53Fw2GLhyYn9xgqx64d-wyiU0R8HGnBEjwU/s1600/plavgword.png" /></a></div><br /><br /><span style="font-size: large;"><i><b><span style="color: #0b5394;">8. Program to count the frequency of words in text</span></b></i></span><br /><br /><br /><span style="color: #20124d;"><b># Clear word hash</b></span><br />%words = ();<br />print "What is the text you wish to analyze? \n";<br />print "Please include the filename and extension \n\n";<br />$textfile = <>;                                  <b><span style="color: #20124d;"> # Read the filename from the keyboard </span>input</b><br />chop $textfile;                                               <span style="color: #20124d;"><b> # Remove line return</b></span><br />print "Now analyzing lexical frequency in $textfile\n\n";<br />open text_in, "< $textfile";<br />while ($line = <text_in>) {<br />   chomp($line);                                                         <span style="color: #20124d;"><b>  # Remove line returns</b></span><br />   $line = lc($line);                                                      <span style="color: #20124d;"><b> # Change to lower case</b></span><br />   $line = ' ' . $line . ' ';                                                 <span style="color: #20124d;"><b># Add spaces</b></span><br />   $line =~ s/["(),;:.!?]/ /g;                                            <span style="color: #20124d;"><b># Remove punctuation</b></span><br />   @words = split (" ", $line );                                    <span style="color: #20124d;"><b> # Put words into an array</b></span><br />      foreach $word (@words) {<br />         $words{$word} = $words{$word} + 1;           <span style="color: #20124d;"><b>  # Put word and word frequency in hash</b></span><br />      }<span style="color: #20124d;"><b> #end foreach word</b></span><br />} #end while<br />close text_in;<br /># Display the results<br />foreach $word (sort keys %words) {                        <span style="color: #20124d;"><b>  # Sort the word hash</b></span><br />   print "$word $words{$word}\n";                       <span style="color: #20124d;"><b> # Print word and frequency</b></span><br />   }<br /><br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQD3PLYR21gMemVqohyWYW9aDKJhZpjQPtUQVdmwkH7vMa2B0-3DJsw7RSoPpgN2HmlX5lqiLk-ujcfFVu1ffi-VasnKfyashoLCren7Sd_MJME9UBF35fupqbYmrtQMBzPL6YdIdOSug/s1600/plfreqword.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQD3PLYR21gMemVqohyWYW9aDKJhZpjQPtUQVdmwkH7vMa2B0-3DJsw7RSoPpgN2HmlX5lqiLk-ujcfFVu1ffi-VasnKfyashoLCren7Sd_MJME9UBF35fupqbYmrtQMBzPL6YdIdOSug/s1600/plfreqword.png" /></a></div></div>

Simple Perl Programs

Perl - P ractical E xtraction and R eport L anguage Perl is an interpreted scripting language. Perl is optimised for scanning arbitrary text...

Read more »

Working on Version Control System

<div dir="ltr" style="text-align: left;" trbidi="on"><a href="http://en.wikipedia.org/wiki/Mercurial" target="_blank">Mercurial</a> is an SCM( Source Control Management ) system designed for software developers to efficient handling of very large distributed packages. It keeps all the history of changes and modifications of an project. It is developed in Python. It is easy to use.<br /><br /><span style="color: #0b5394;"><i><b><span style="font-size: large;">Installation :</span></b></i></span><br /><br />For Ubuntu based distro users<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><i><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>sudo apt-get install mercurial</b></span></span></i></blockquote></blockquote><br />For Fedora users<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>sudo yum install mercurial</b></span></span></blockquote></blockquote><br />For OpenSUSE users<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>sudo zypper install mercurial</b></i></span></span></blockquote></blockquote><br />For Gentoo users<br />  <br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>sudo emerge mercurial</b></span></span></blockquote></blockquote><i><span style="color: #0b5394;"><span style="font-size: large;"><b><br /></b></span></span></i><i><span style="color: #0b5394;"><span style="font-size: large;"><b>Working on Version Control System :</b></span></span></i><br /><br />First create new directory to configure the repository of the version of the program. So just create new directory by,<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>mkdir hg</b></i></span></span></blockquote></blockquote><br />Move to this hg directory by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>cd hg</b></i></span></span></blockquote></blockquote><br />Just create some program files or text files. Here i'm gonna  to create a.txt file<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><i><b><span style="color: #4c1130;"><span style="background-color: #cccccc;">gedit a.txt</span></span></b></i></blockquote></blockquote><br />Then type anything in this files, save it and close it.<br /><br />After the file creation, Create repository of your hg directory by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><i><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>hg init</b></span></span></i></blockquote></blockquote><br />Then add a.txt file to version tracking system by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>hg add a.txt</b></i></span></span></blockquote></blockquote><br />Now save the current position of the file details using commit command.<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><i><b><span style="background-color: #cccccc;"><span style="color: #4c1130;">hg commit -u author -m "message"</span></span></b></i></blockquote></blockquote><br />When you saved the current position, open the same file and edit it by adding or deleting some texts in it, save it and close it.<br /><br />Now check the changes of the file contents by<br /><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b><br /></b></i></span></span><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>cat a.txt</b></i></span></span></blockquote></blockquote><br />It will show the a.txt file contents after you modified.<br /><br />If you wanna to go to previous version, then just revert it by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><i><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>hg revert a.txt</b></span></span></i></blockquote></blockquote><br />Now check the file contents by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>cat a.txt</b></i></span></span></blockquote></blockquote><br />it will show the previous version contents.<br /><br />Check the log file details by<br /><blockquote class="tr_bq"><i><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b><br /></b></span></span></i><blockquote class="tr_bq"><i><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>hg log</b></span></span></i></blockquote></blockquote><br />Check the differences between two versions by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><i><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>hg diff --rev 0:1</b></span></span></i></blockquote></blockquote><br />That's all. Enjoy. I hope you got some basic ideas of working on Version control system.  If you wanna to know more details check the links given below.<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><a href="http://hgbook.red-bean.com/read/a-tour-of-mercurial-the-basics.html" target="_blank"><span style="color: #0b5394;"><i><b><span style="font-size: x-large;">LINK 1</span></b></i></span></a></blockquote></blockquote><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><a href="http://www.selenic.com/mercurial/hg.1.html" target="_blank"><span style="font-size: x-large;"><b><span style="color: #0b5394;">LINK 2</span></b></span></a></blockquote></blockquote></div>

Working on Version Control System

Mercurial is an SCM( Source Control Management ) system designed for software developers to efficient handling of very large distributed pa...

Read more »

Developing GUI programs using the Qt toolkit on Ubutnu based distros

<div dir="ltr" style="text-align: left;" trbidi="on">Earlier days, in Linux  machines developers used a single terminal ( command prompt ) to finish the tasks by simply entering the commands. But remembering all the commands leads complexity on linux for new people. So, developers decide to implement Graphical User Interface (GUI) to complete the tasks on Linux machines with echo friendly. Also developers globally build some FOSS tools to develop GUI programs for new developers. All the new developers are loved those FOSS tools and using that tools, they developed GUI programs. <br /><br />GUI programming is nothing but a X windowing system on Linux machine. This X windowing system provides windows on computer displays and interacts to users by accepting inputs from keyboards, control functions and touch screens etc.<br /><br />X windowing system uses GUI toolkits to help the development of GUI programs. <a href="http://en.wikipedia.org/wiki/Widget_toolkit%E2%80%8E" target="_blank">GUI Tookit</a> is a set of widgets for use in designing applications with GUIs. This toolkit based on different programming languages. C/C++ are the most commonly used in it. There are 2 popular GUI toolkits are used to develop GUI programs. Those are <a href="http://en.wikipedia.org/wiki/Qt_%28software%29" target="_blank">Qt</a> and <a href="http://en.wikipedia.org/wiki/Gtk%2B" target="_blank">GTk+</a>. Qt is developed in C++ while GTk+ is developed in C Language.<br /><br />Let we see about Simple 3 GUI programs to develop using Qt.<br /><br />Before starting the GUI programming with Qt , you must be install Qt Toolkit. <br />This package contains Qt 4 qmake (qmake-qt4), a tool that helps simplify the build process for development project across different platforms. qmake automates the generation of Makefiles so that only a few lines of information are needed to create each Makefile. qmake can be used for any software project, whether it is written using Qt or not.<br /><br /><span style="color: #0b5394;"><span style="background-color: white;"><br /></span></span><br /><span style="color: #0b5394;"><span style="background-color: white;"><i><span style="font-size: large;"><b>Installing Required Tools :</b></span></i></span></span><br /><br /><span style="color: #274e13;"><b>Step 1 : </b></span>Open Terminal by Accessories -> Terminal or press CTRL+ALT+T<br /><br /><span style="color: #274e13;"><b>Step 2 : </b></span>To install the required tools, copy the command and paste in to the terminal and press enter to install it.<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><i><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>sudo apt-get install qt4-qmake qt4-default qconf</b></span></span></i></blockquote></blockquote><br /><br /><span style="color: #274e13;"><i><b>qt4-qmake</b></i></span><br /><blockquote class="tr_bq">Qt 4 qmake requires a platform and compiler description file which contains many default values used to generate appropriate Makefiles. <span style="color: #274e13;"><i><b><br /></b></i></span></blockquote><span style="color: #274e13;"><i><b>qt4-default</b></i></span><br /><blockquote class="tr_bq">This package sets Qt 4 to be the default Qt version to be used when using development binaries like qmake. It provides a default configuration for qtchooser, but does not prevent alternative Qt installations from being used. </blockquote><span style="color: #274e13;"><i><b>qconf</b></i></span><br /><blockquote class="tr_bq">It is intended for developers who don’t need (or want) to use the more complex GNU autotools. With qconf/qmake, it is easy to maintain a cross-platform project that uses a familiar configuration interface on unix. </blockquote><br /><br /><span style="color: #0b5394;"><b><i><span style="font-size: large;">Developing GUI Programs : </span></i></b></span><br /><br /><span style="color: #274e13;"><b>Step 1 : </b></span>First create the common directory for Qt programs. To create a directory, enter the following command in Terminal<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><i><b><span style="background-color: #cccccc;"><span style="color: #4c1130;">mkdir qtgui</span></span></b></i></blockquote></blockquote><br />Then change the working path to qtgui as<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>cd qtgui</b></i></span></span></blockquote></blockquote><br /><span style="color: #274e13;"><b>Step 2 : </b></span>Now will see first program of simple hello world program. For this create new directory "qthellopgm" as<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>mkdir qthellopgm</b></i></span></span></blockquote></blockquote><br />Change working path to this directory as<br /><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b><br /></b></i></span></span><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>cd qthellopgm</b></i></span></span></blockquote></blockquote><br />Then create hello world program using C++. Call gedit ( Text editor ) to open new program by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><i><b><span style="background-color: #cccccc;"><span style="color: #4c1130;">gedit qthellopgm.cpp</span></span></b></i></blockquote></blockquote><br />And then copy the following code and paste into the qthellopgm.cpp file.<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><b><span style="color: #4c1130;"><i>#include <QtGui><br />int main(int argc, char *argv[])<br />{<br />QApplication app(argc, argv);<br />QWidget window;<br />window.resize(320, 240);<br />window.setWindowTitle("Hello World!");<br />window.show();<br />return app.exec();<br />}</i></span></b></blockquote></blockquote><br />Save the program in gedit and close it.<br /><br />After using Qt toolkit, first make the qthellopgm.cpp as project by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><i><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>qmake-qt4 -project</b></span></span></i></blockquote></blockquote><br />When the project was successfully created , then use qmake-qt4 compiler to compile the code.<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>qmake-qt4 </b></i></span></span></blockquote></blockquote><br />And use <a href="http://easytricksportal.blogspot.in/2013/11/compiling-software-from-source-on.html" target="_blank">make</a> to create executable file. When you call make, it will create executable file and executes the corresponding result of the program.<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><i><span style="color: #4c1130;"><b>make</b></span></i></span></blockquote></blockquote><br />Check the screen-shot below... <br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhpr1pqtRU8ZFzXLJyrZ9QA4JnjLoq0Jt8SOl7KJT1G9J7X4A7BelgeEuvcmMbtl0mj_rbIhDzc4rsGD-71dfJ6egdzPTMLXSyfNXwc9aZ71ouGcAtJ8OhORDjf8Z85UPqdjDjxDhiFTfHq/s1600/qmake2.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhpr1pqtRU8ZFzXLJyrZ9QA4JnjLoq0Jt8SOl7KJT1G9J7X4A7BelgeEuvcmMbtl0mj_rbIhDzc4rsGD-71dfJ6egdzPTMLXSyfNXwc9aZ71ouGcAtJ8OhORDjf8Z85UPqdjDjxDhiFTfHq/s1600/qmake2.png" /></a></div><br />Close the Hello World! window to exit it.<br /><br /><span style="color: #274e13;"><b>Step 3 : </b></span>Let we see the second program to create a window with a button:<br /><br />Move to common directory (qtgui directory) by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>cd ..</b></i></span></span></blockquote></blockquote><br />Create new directory "qtbuttonpgm" as<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>mkdir qtbuttonpgm</b></i></span></span></blockquote></blockquote><br />Move to this directory by<br /><blockquote class="tr_bq"><i><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b><br /></b></span></span></i><blockquote class="tr_bq"><i><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>cd qtbuttonpgm</b></span></span></i></blockquote></blockquote><br />Then create qtbuttonpgm.cpp file to create a window with a button by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>gedit qtbuttonpgm.cpp</b></i></span></span></blockquote></blockquote><br />Now copy the following code and paste into it.<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><b><i><span style="color: #4c1130;">#include <QtGui><br />int main(int argc, char *argv[])<br />{<br />QApplication app(argc, argv);<br />QWidget window;<br />window.resize(320, 240);<br />window.setWindowTitle("Window with a button");<br />window.show();<br />QPushButton *button = new QPushButton("Press me", &window);<br />button->move(100, 100);<br />button->show();<br />return app.exec();<br />}</span></i></b></blockquote></blockquote><br />Save it and close it. After follow the same steps compiled and executed in first program. Just enter the following commands one-by-one.<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>qmake-qt4 -project</b></i></span></span><br /><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b><br /></b></i></span></span><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>qmake-qt4</b></i></span></span><br /><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b><br /></b></i></span></span><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>make</b></i></span></span></blockquote></blockquote><br />when you successfully make it, you will get the window with just press me button. <br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgzte_P4IY85op3ysBLa4SqOyqF3rLtemTPx8wltKpr1vOPWRUHGjfAmOQVXZSdWAbEy5vNjKy2mrkWSp5v6UqDVLYtE8PbQRpIbyzC3liHyw8DVKvH4VycjWjZkqES8twJqVXOvZ8rIuxQ/s1600/qmake3.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgzte_P4IY85op3ysBLa4SqOyqF3rLtemTPx8wltKpr1vOPWRUHGjfAmOQVXZSdWAbEy5vNjKy2mrkWSp5v6UqDVLYtE8PbQRpIbyzC3liHyw8DVKvH4VycjWjZkqES8twJqVXOvZ8rIuxQ/s1600/qmake3.png" /></a></div><br />Clsoe the button window to exit from it.<br /><span style="color: #274e13;"><b><br /></b></span><span style="color: #274e13;"><b>Step 4 : </b></span>Finally we will see the third window program with two widgets managed by a layout manager.<br /><br />Move to common directory (qtgui directory) by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><i><span style="color: #4c1130;"><span style="background-color: #cccccc;"><b>cd ..</b></span></span></i></blockquote></blockquote><br />Create new directory "qtlayoutpgm" as<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>mkdir qtlayoutpgm</b></i></span></span></blockquote></blockquote><br />Move to this directory by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>cd qtlayoutpgm</b></i></span></span></blockquote></blockquote><br />Then create qtlayoutpgm.cpp file to create a window with a button by<br /><blockquote class="tr_bq"><b><br /></b><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>gedit qtlayoutpgm.cpp</b></i></span></span></blockquote></blockquote><br />Now copy the following code and paste into it.<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="color: #4c1130;"><i><b>#include <QtGui></b><br /><b>int main(int argc, char *argv[])</b><br /><b>{</b><br /><b>QApplication app(argc, argv);</b><br /><b>QWidget window;</b><br /><b>QLabel *label = new QLabel("Name:");</b><br /><b>QLineEdit *lineEdit = new QLineEdit();</b><br /><b>QHBoxLayout *layout = new QHBoxLayout();</b><br /><b>layout->addWidget(label);</b><br /><b>layout->addWidget(lineEdit);</b><br /><b>window.setLayout(layout);</b><br /><b>window.setWindowTitle("Window layout");</b><br /><b>window.show();</b><br /><b>return app.exec();</b><br /><b>}</b></i></span></blockquote></blockquote><br /><br />Save it and close it. After follow the same steps compiled and executed in first program. Just enter the following commands one-by-one.<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>qmake-qt4 -project</b></i></span></span><br /><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b><br /></b></i></span></span><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>qmake-qt4</b></i></span></span><br /><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b><br /></b></i></span></span><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>make</b></i></span></span></blockquote></blockquote><br />when you successfully make it,you will get the following result. <br /><br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiB178eGJKCgku4GLQGPqeQBGphwFh-a_LHV9Yln8idEaUyeIb7NWSN4XSBRmAnDaoKIV9dGgUHoL2MMdJZ2hMUbou6veOoDT4IdfjPHZYVrAnHZpg_rvmVrnT0R1BrF8mBAYFr0M27SPQI/s1600/qmake5.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiB178eGJKCgku4GLQGPqeQBGphwFh-a_LHV9Yln8idEaUyeIb7NWSN4XSBRmAnDaoKIV9dGgUHoL2MMdJZ2hMUbou6veOoDT4IdfjPHZYVrAnHZpg_rvmVrnT0R1BrF8mBAYFr0M27SPQI/s1600/qmake5.png" /></a></div><br /></div>

Developing GUI programs using the Qt toolkit on Ubutnu based distros

Earlier days, in Linux  machines developers used a single terminal ( command prompt ) to finish the tasks by simply entering the commands. ...

Read more »

Comman Unix Printing System Setup on Ubuntu / Linux Mint / Zorin OS / OS4 OpenLinux / Lubuntu / elementary OS / Bodhi Linux / Kubuntu / Ubuntu GNOME / Xubuntu / Pear Linux / Pinguy OS / Edubuntu

<div dir="ltr" style="text-align: left;" trbidi="on"><br />CUPS is a Comman Unix Printing System. From the name we can easily captured this is a Printing System. Yes but it manages the multiple printers simultaneously with the based on multi threaded process.<br /><br />The latest version CUPS 1.6 is released. It has lot features and improvements compare to 1.5 and it is very helpful where the resources are lower to printing textual documents, objects, graphics and line drawings etc. It allows to configure a single printer to multiple computers. Also same like this allows to manage multiple printers in single machine. Let see about installation and working with on CUPS.<br /><i><span style="font-size: large;"><span style="color: #0b5394;"><b><br /></b></span></span></i><i><span style="font-size: large;"><span style="color: #0b5394;"><b>Installation :</b></span></span></i><br /><span style="color: #274e13;"><b><br /></b></span><span style="color: #274e13;"><b>Step 1 :</b></span> First Install CUPS in your machine, if not existing. By default Ubuntu comes with CUPS. If still not existing, then install it by<br /><blockquote class="tr_bq"><i><b><span style="color: #274e13;">For Ubuntu based linux users</span></b></i><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b><br /></b></span></span></blockquote><br /><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b></b></span></span> <blockquote class="tr_bq"><blockquote class="tr_bq"><i><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>sudo apt-get install cups</b></span></span></i></blockquote></blockquote></blockquote><br /><blockquote class="tr_bq"><span style="color: #274e13;"><i><b>For Fedora users </b></i></span></blockquote><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><blockquote class="tr_bq"><i><b><span style="background-color: #cccccc;"><span style="color: #4c1130;">sudo yum install cups </span></span></b></i></blockquote></blockquote></blockquote><br /><div class="separator" style="clear: both; text-align: center;"></div><span style="color: #0b5394;"><i><span style="font-size: large;"><b>Working :</b></span></i></span><br /><br /><span style="color: #274e13;"><b>Step 2 :</b></span> And then Open your Browser and enter the following command in browser's address bar.<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="color: #4c1130;"><span style="background-color: #cccccc;"><i><b>http://localhost:631/</b></i></span></span></blockquote></blockquote><br />Now you will see CUPS 1.6.2 version on your browsres. Its easy to understand it.<br /><br />Just go to Administaration -> Add printer and click the button.<br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhwj697NNBosCFALcRqwLKbcQaf4ZxR2K_58KQuqN76gFxEJ9d-q9DnAK4nlJ5C-VR_jRI-h9d-vY5nGxyBhm5t_63lNa137rWmuJLcD9rBKRyi7wE9a_rQuZW9g5XxcaEqcYL5HGrYBCY/s1600/cups.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhwj697NNBosCFALcRqwLKbcQaf4ZxR2K_58KQuqN76gFxEJ9d-q9DnAK4nlJ5C-VR_jRI-h9d-vY5nGxyBhm5t_63lNa137rWmuJLcD9rBKRyi7wE9a_rQuZW9g5XxcaEqcYL5HGrYBCY/s1600/cups.png" /></a></div><br /><span style="color: #274e13;"><b>Step 3 :</b></span> Add the Printer Type which you want to setup with your main windown.<br />  <br /><br /><div class="separator" style="clear: both; text-align: center;"></div><div class="separator" style="clear: both; text-align: center;"></div><div class="separator" style="clear: both; text-align: center;"></div><div class="separator" style="clear: both; text-align: center;"></div><div class="separator" style="clear: both; text-align: center;"></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmIwODY24TpI6j3WF9K73wWc0vPO7QFxNvg6WunoFzhlez6xa2w6WN5cSZ6MTQPFGkaq5pAgFBDL3MRCCoKoLoF2si_FEI6gTRkiF3rfFOJ8vHrmGbOtKVEkzcv6Q_NadAWglqHeB1YZM/s1600/cups2.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmIwODY24TpI6j3WF9K73wWc0vPO7QFxNvg6WunoFzhlez6xa2w6WN5cSZ6MTQPFGkaq5pAgFBDL3MRCCoKoLoF2si_FEI6gTRkiF3rfFOJ8vHrmGbOtKVEkzcv6Q_NadAWglqHeB1YZM/s1600/cups2.png" /> </a></div><br /><span style="color: #274e13;"><b>Step 4 : </b></span>Set your own url for accessing the printer.<br /><br /><br /><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTmfLLnIqxAeomIRwDV4NAYppxQ8SnzLgvSMkVXkPLP_36aPAAu9nYuGwGnU6hvTrAkUUbF_ZySELh2rniK-60oKpdvlopOApHF585_AbUmlNWmTha8TMYMFI9VOBFjheA-PwtB2nM-eA/s1600/cups3.png" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTmfLLnIqxAeomIRwDV4NAYppxQ8SnzLgvSMkVXkPLP_36aPAAu9nYuGwGnU6hvTrAkUUbF_ZySELh2rniK-60oKpdvlopOApHF585_AbUmlNWmTha8TMYMFI9VOBFjheA-PwtB2nM-eA/s1600/cups3.png" /></a> <span style="color: #274e13;"><b>Step 5 : </b></span>In this step just Enter necessary details about your printer.<br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj-csMr4afYoCASy6KA_b7hnq3c4epBMr8XG5jpvzs5twO1M593I5UsMbfTyBpiY77cICPml0O73GTQl6YMn9KmcbIWN_52p2KZVo62Mpfa_-8lLC6GcfKaQ8quuV8BOBFlwAEDtdP0hMY/s1600/cups4.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj-csMr4afYoCASy6KA_b7hnq3c4epBMr8XG5jpvzs5twO1M593I5UsMbfTyBpiY77cICPml0O73GTQl6YMn9KmcbIWN_52p2KZVo62Mpfa_-8lLC6GcfKaQ8quuV8BOBFlwAEDtdP0hMY/s1600/cups4.png" /> </a></div><div class="separator" style="clear: both; text-align: center;"><br /></div><div class="separator" style="clear: both; text-align: left;"><br /></div><span style="color: #274e13;"><b> Step 6 : </b></span>Select Model of Printer and press Add printer.<br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjqCsbzGlNx0r_1QWIuQB5XaCEicjOls2pAYFQZPjgJiWlpis4Rvzii9LFzlZoYPiTJoZWqgLh-Ig8mvlZhK8nI_Fy85mqJ82Vok62iG7WGeXWk0Ecr0Tjp0g2YUiYIQBUr987ZzlGE8As/s1600/cups5.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjqCsbzGlNx0r_1QWIuQB5XaCEicjOls2pAYFQZPjgJiWlpis4Rvzii9LFzlZoYPiTJoZWqgLh-Ig8mvlZhK8nI_Fy85mqJ82Vok62iG7WGeXWk0Ecr0Tjp0g2YUiYIQBUr987ZzlGE8As/s1600/cups5.png" /> </a></div><div class="separator" style="clear: both; text-align: center;"><br /></div><div class="separator" style="clear: both; text-align: left;"><span style="color: #274e13;"><b>Step 7 : </b></span>Now select Model category type and press Add Printer </div><br /><div class="separator" style="clear: both; text-align: center;"></div><div class="separator" style="clear: both; text-align: center;"></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj-2sQzb-oAxaqxXqcBQMXI2p3F04sNTx1MmnoiDVN2hyphenhypheno68w_F3UMK6wOUej1sk76ixZ-lxD2Uy59Iw2H8xecw1EyBzVp4OrYKdqOnqIcTM1dwhyyGMiskRol0yzWzMXxwQ0fFRWbQhPk/s1600/cups6.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj-2sQzb-oAxaqxXqcBQMXI2p3F04sNTx1MmnoiDVN2hyphenhypheno68w_F3UMK6wOUej1sk76ixZ-lxD2Uy59Iw2H8xecw1EyBzVp4OrYKdqOnqIcTM1dwhyyGMiskRol0yzWzMXxwQ0fFRWbQhPk/s1600/cups6.png" /></a></div><br /><br /><span style="color: #274e13;"><b>Step 8 : </b></span>In this step configure the paper size for printing page.<br /><br /><div class="separator" style="clear: both; text-align: center;"></div><div class="separator" style="clear: both; text-align: center;"></div><div class="separator" style="clear: both; text-align: center;"></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEix4vHIqnagOPnrjGjUbn8ySxP0h1JMAeJLxk090ftGsOACLU0gw9MdtSI3e46BYaGutxUJ3fHp_ZIU-cmWpQ1zjM-3XdQ48786GXxhLXulMSHM82tTFAJfzlCgi7NOQftCq3i-J_RWU7Q/s1600/cups7.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEix4vHIqnagOPnrjGjUbn8ySxP0h1JMAeJLxk090ftGsOACLU0gw9MdtSI3e46BYaGutxUJ3fHp_ZIU-cmWpQ1zjM-3XdQ48786GXxhLXulMSHM82tTFAJfzlCgi7NOQftCq3i-J_RWU7Q/s1600/cups7.png" /> </a></div><div class="separator" style="clear: both; text-align: center;"><br /></div><div class="separator" style="clear: both; text-align: left;">That's all you are done. When you are finished the setup. You will get the result below like this.</div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj2rlUlwSLvjERZKmfQgE-BT4Zk7rAVnFw0ShzqTr3fixnVNPwNLDsdChAtyOBhgxiIPrhM2c87z72Ldd76DaAxSTrSYBhPT34S0jCVu4rHjmmKpA_Kh618NICEPt-vYl64mJiHLVdW-Y4/s1600/cups9.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj2rlUlwSLvjERZKmfQgE-BT4Zk7rAVnFw0ShzqTr3fixnVNPwNLDsdChAtyOBhgxiIPrhM2c87z72Ldd76DaAxSTrSYBhPT34S0jCVu4rHjmmKpA_Kh618NICEPt-vYl64mJiHLVdW-Y4/s1600/cups9.png" /> </a></div><div class="separator" style="clear: both; text-align: center;"><br /></div><div class="separator" style="clear: both; text-align: left;">If you want to check number of printers set with your system, just go to Printer Tab and check it. Check the screen shots below. </div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLk_knNhEVSmc6Q06yUz5RJzB_mbAU232YiFFjKQPPCJVXgF8oAhRZSExZoZcV9itwy9oLqiEk7uIj5_t2IySLJHLceVltRG0No4zlKPLy43v7XZdvBoDxUeqzXAQt8xPLudZ2K7BTNxw/s1600/cups10.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLk_knNhEVSmc6Q06yUz5RJzB_mbAU232YiFFjKQPPCJVXgF8oAhRZSExZoZcV9itwy9oLqiEk7uIj5_t2IySLJHLceVltRG0No4zlKPLy43v7XZdvBoDxUeqzXAQt8xPLudZ2K7BTNxw/s1600/cups10.png" /></a></div><br /></div>

Comman Unix Printing System Setup on Ubuntu / Linux Mint / Zorin OS / OS4 OpenLinux / Lubuntu / elementary OS / Bodhi Linux / Kubuntu / Ubuntu GNOME / Xubuntu / Pear Linux / Pinguy OS / Edubuntu

CUPS is a Comman Unix Printing System. From the name we can easily captured this is a Printing System. Yes but it manages the multiple print...

Read more »

File Sharing using Samba on Ubuntu / Fedora / Linux Mint / Zorin OS / OS4 OpenLinux / Lubuntu / elementary OS / Bodhi Linux / Kubuntu / Ubuntu GNOME / Xubuntu / Pear Linux / Pinguy OS / Edubuntu

<div dir="ltr" style="text-align: left;" trbidi="on">In this post we will see about sharing files between two computers using a tool called samba. Samba is a free software, which provides fast file sharing and print services for all clients using the SMB/CIFS protocol. It supports multiple platforms simultaneously.<br /><br /><br /><span style="color: #274e13;"><b>Step 1 : </b></span>First install samba in your machine.<br /><br /><b>Open Terminal</b> by <b>Accessories -> Terminal</b> or <b>CTRL+ALT+T </b><br /><blockquote class="tr_bq"><br /><span style="color: #0b5394;"><b>For Fedora users </b></span><br /><br /><blockquote class="tr_bq"><span style="background-color: #cccccc;"><i><span style="color: #4c1130;"><b>sudo yum install samba</b></span></i></span></blockquote><br /><br /><span style="color: #0b5394;"><b> For Ubuntu / Linux Mint / Zorin OS / OS4 OpenLinux / Lubuntu / elementary OS / Bodhi Linux / Kubuntu / Ubuntu GNOME / Xubuntu  / Pear Linux / Pinguy OS / Edubuntu  users </b></span><br /><br /><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>sudo apt-get install samba</b></i></span></span></blockquote></blockquote><br /><span style="color: #274e13;"><b>Step 2 :</b></span> After the installation of samba, create a directory with any name and copy the files ( Which are all you want to share ) to this directory.<br /><br />Then Right click on the directory and choose Properties.<br /><br />Here for example i just created directory called <b>"Pictures"</b> and <b>Open properties</b> <b>by right clicking on this directory.</b> After <b>select "Share" tab on Properties window. </b><br /><br />Then click mark on following fields.<br /><br /><b>-> Share this folder</b><br /><b>-> Allow others to create and delete files in this folder</b><br /><b>-> Guest access ( for people without a user account )</b><br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3bO0QLu4CyJFt4K95mPn8F61gdJaadKx2WZkx0-EU0-Mxrkum-BVitilXcf4jykQVbrJEKgCRCkQuqg-8RKdImwE5qOKow_-fTQECpQU98L2C6tDFPhqrOVBaC2S1UkZNSQDUHWX1uJs/s1600/samba4.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3bO0QLu4CyJFt4K95mPn8F61gdJaadKx2WZkx0-EU0-Mxrkum-BVitilXcf4jykQVbrJEKgCRCkQuqg-8RKdImwE5qOKow_-fTQECpQU98L2C6tDFPhqrOVBaC2S1UkZNSQDUHWX1uJs/s1600/samba4.png" /></a></div><br />If you want to set sharing with password access, then unmark the Guess access field.<br /><br />After <b>click on Create Share </b>to activate sharing file option.<br /><br />Now you will get this pop window asking you to <b>apply permissions automatically</b>. <br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhh-NOs1qisOq-vMLvd4XwUzr6UV96hI_nL8aTBwlPPr5T7pAL5dNDy4aciKPYUJBB5LiUBGXMPJNSgWuOAMtF24jO-Nt96HtmIk8FYYIEFIviFk8JFlXgZ6nOCIu3zT-h8oWLxCqINGvg/s1600/samba6.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhh-NOs1qisOq-vMLvd4XwUzr6UV96hI_nL8aTBwlPPr5T7pAL5dNDy4aciKPYUJBB5LiUBGXMPJNSgWuOAMtF24jO-Nt96HtmIk8FYYIEFIviFk8JFlXgZ6nOCIu3zT-h8oWLxCqINGvg/s1600/samba6.png" /></a></div><br />That's all you are finished to creating sharing.<br /><br />When you are finished sharing option, your sharing folder will look like this.<br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiC_zk86zbGsSVhbBvlGU9M8_dNqvMzNX2c8VxKvNCtrnFUzcRXs3vbQYwvCV0G-4lS1orOiIDdHDSoO1y8gg9hfokLu3-R1YEwfRTN2lya8Ng00C-58_qhQakj-x-tCfFL6uswODR05Jk/s1600/samba7.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiC_zk86zbGsSVhbBvlGU9M8_dNqvMzNX2c8VxKvNCtrnFUzcRXs3vbQYwvCV0G-4lS1orOiIDdHDSoO1y8gg9hfokLu3-R1YEwfRTN2lya8Ng00C-58_qhQakj-x-tCfFL6uswODR05Jk/s1600/samba7.png" /></a></div><br /><span style="color: #274e13;"><b><br /></b></span><span style="color: #274e13;"><b>Step 3 :</b></span> After created sharing, send your machine IP to your friend to access the shared files.<br /><br />If you don't know how to <b>check IP of your machine</b>, Enter the following commands in your terminal.<br /><br /><i><span style="color: #0b5394;"><b>Linux Machine users enter this command in terminal ==></b></span></i> <span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>ifconfig</b></i></span></span><br /><span style="color: #0b5394;"><b><br /></b></span><span style="color: #0b5394;"><b>Windows Machine users enter this command in CMD ==> </b></span><i><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>ipconfg</b></span></span></i><br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgKPCzpVI16-4uwQmdrezTAC3Af0TzlkwLShXLrPjVOUXJkmmJcgDx64UGug7ZkzCy8lXbB02uR9ddCaPEdkyUnvVCkD3aU-HMHuXXefE89sBYhbomvTsHuV9xbOmsxS1GExOq1VaBsg74/s1600/samba8.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgKPCzpVI16-4uwQmdrezTAC3Af0TzlkwLShXLrPjVOUXJkmmJcgDx64UGug7ZkzCy8lXbB02uR9ddCaPEdkyUnvVCkD3aU-HMHuXXefE89sBYhbomvTsHuV9xbOmsxS1GExOq1VaBsg74/s1600/samba8.png" /></a></div><br /><br /><span style="color: #274e13;"><b>Step 4 : </b></span>Then <b>copy the IP from terminal.</b><br /><br />The <b>Open any folder</b> and <b>Press CTRL+L</b> and then <b>enter following address</b> in your location bar.<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><i><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>smb://192.168.42.49</b></span></span></i></blockquote></blockquote><br />Here replace your machine IP address with my IP address. And smb is a protocol, which samba uses this protocol to share files between the computers.<br /><br />That's all. Now you will see the shared files.<br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjHJJr6IGcdVFjQOzsxl1n-16Y9zsAJrI2mu_WdcXhv_6kewtsNyKOv_mIYGS4s0GhZG4-EBO9I3DQa1RGKwaBUDcqOV6ix7whS2oW_VkxUIT8PyCTsGNlxRVg051BCBRGhYPVwHF-8674/s1600/samba10.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjHJJr6IGcdVFjQOzsxl1n-16Y9zsAJrI2mu_WdcXhv_6kewtsNyKOv_mIYGS4s0GhZG4-EBO9I3DQa1RGKwaBUDcqOV6ix7whS2oW_VkxUIT8PyCTsGNlxRVg051BCBRGhYPVwHF-8674/s1600/samba10.png" /></a></div><br />Then just open the folder and access the files in it.<br /><br />If you want to access connection from windows system, Go to<br /><br /><b>My computer </b> and enter the <b>IP address in address bar</b> in the below format.<br /><blockquote class="tr_bq"><b><br /></b><blockquote class="tr_bq"><i><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>\\192.160.2.14</b></span></span></i></blockquote></blockquote><br />Replace IP address with your machine IP address...<br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiXTJV152IifgksRAh2hjO3mAmXyLIioigdVnhE_K_mG4qTcg_2az9_BpK_mM3CRoOzR4Ps6lphVhHVxnIzGWYNKcPo0WOh8afntUek78X-yX3StNnxOpe2RXst4UKoKOxVpPJS3n7cd1g/s1600/samba3.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiXTJV152IifgksRAh2hjO3mAmXyLIioigdVnhE_K_mG4qTcg_2az9_BpK_mM3CRoOzR4Ps6lphVhHVxnIzGWYNKcPo0WOh8afntUek78X-yX3StNnxOpe2RXst4UKoKOxVpPJS3n7cd1g/s1600/samba3.png" /></a></div><br />That's all. Enjoy!!!</div>

File Sharing using Samba on Ubuntu / Fedora / Linux Mint / Zorin OS / OS4 OpenLinux / Lubuntu / elementary OS / Bodhi Linux / Kubuntu / Ubuntu GNOME / Xubuntu / Pear Linux / Pinguy OS / Edubuntu

In this post we will see about sharing files between two computers using a tool called samba. Samba is a free software, which provides fast ...

Read more »

Filesystem in Userspace ( FUSE ) Tutorial

<div dir="ltr" style="text-align: left;" trbidi="on">FUSE is an mechanism which allows to create own file systems to non-privileged users without editing the kernel code. Initially it was developed to support for AVFS ( A Virtual File System ). After that it will be taken as separate project. It runs file system code in user space while the FUSE module provides only a "bridge" to the actual kernel interfaces. Check the FUSE structure, it will help you to understand about FUSE.<br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjfcm8uY8yNmonvTtLZnuqnAq-sG04vI3j5wZzWHeTcJmfq7O2iEKRpWdQQbYVSGeB6k1aKJTP8yLleHTlqSGr_FPvFsupsbuEhSEVQw9NSt4bVjV2AenXuzMsMW6o3fmC6FK8rEeo7pJY/s1600/fuse_structure.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjfcm8uY8yNmonvTtLZnuqnAq-sG04vI3j5wZzWHeTcJmfq7O2iEKRpWdQQbYVSGeB6k1aKJTP8yLleHTlqSGr_FPvFsupsbuEhSEVQw9NSt4bVjV2AenXuzMsMW6o3fmC6FK8rEeo7pJY/s1600/fuse_structure.png" /></a></div><br /><span style="color: #0b5394;"><i><span style="font-size: large;"><b>Installation : </b></span></i></span><br /><br />To use FUSE , you must be install this on your system. Just follow my steps.<br /><br /><span style="color: #274e13;"><b>Step 1 : </b></span>Download FUSE 2.9.3 ( latest version ) from the following link.<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><i><b><span style="font-size: large;"><span style="color: #274e13;">==> <a href="http://sourceforge.net/projects/fuse/files/fuse-2.X/2.9.3/" target="_blank">FUSE 2.9.3.tar.gz</a></span></span></b></i></blockquote></blockquote><span style="color: #274e13;"><b>Step 2 : </b></span>After downloaded FUSE, open terminal and move to Downloads directory by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>cd Downloads</b></span></span></blockquote></blockquote><br /><span style="color: #274e13;"><b>Step 3 : </b></span>Extract FUSE 2.9.3.tar.gz file by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>tar -zxvf fuse-2.9.3.tar.gz</b></i></span></span></blockquote></blockquote><br /><span style="color: #274e13;"><b>Step 4 :</b></span> Move to fuse-2.9.3 directory by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="color: #4c1130;"><span style="background-color: #cccccc;"><i><b>cd fuse-2.9.3</b></i></span></span></blockquote></blockquote><br /><span style="color: #274e13;"><b>Step 5 : </b></span>Install FUSE by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>sudo ./configure</b></i></span></span><br /><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b><br /></b></i></span></span><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>sudo make</b></i></span></span><br /><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b><br /></b></i></span></span><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>sudo make install</b></i></span></span></blockquote></blockquote><br /><br /><br /><span style="color: #0b5394;"><i><span style="font-size: large;"><b>Working :</b></span></i></span><br /><span style="color: #0b5394;"></span><br /><span style="color: #0b5394;"><br /></span><br /><span style="color: #274e13;"><b>Step 6 :</b></span> Just create a new directory to work with on FUSE by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>mkdir fusep</b></span></span></blockquote></blockquote><br />move to fusep directory as<br /><blockquote class="tr_bq"><b><br /></b><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>cd fusep</b></i></span></span></blockquote></blockquote><br /><span style="color: #274e13;"><b>Step 7 : </b></span>Create simple helloworld program using  C program by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>gedit hello.c</b></span></span></blockquote></blockquote><br />Now copy the following program and paste into hello.c file<br /><br /><blockquote class="tr_bq"><br /><pre><span style="color: blue;"><strong>#define FUSE_USE_VERSION 26</strong></span><br /><br /><span style="color: blue;"><strong>#include <span style="color: green;"><fuse.h></span></strong></span><br /><span style="color: blue;"><strong>#include <span style="color: green;"><stdio.h></span></strong></span><br /><span style="color: blue;"><strong>#include <span style="color: green;"><string.h></span></strong></span><br /><span style="color: blue;"><strong>#include <span style="color: green;"><errno.h></span></strong></span><br /><span style="color: blue;"><strong>#include <span style="color: green;"><fcntl.h></span></strong></span><br /><br /><strong>static</strong> <strong>const</strong> <strong>char</strong> <span style="color: #4444ff;">*</span><span style="color: #2040a0;">hello_str</span> <span style="color: #4444ff;">=</span> <span style="color: green;">"Hello World!<span style="color: #77dd77;">\n</span>"</span><span style="color: #4444ff;">;</span><br /><strong>static</strong> <strong>const</strong> <strong>char</strong> <span style="color: #4444ff;">*</span><span style="color: #2040a0;">hello_path</span> <span style="color: #4444ff;">=</span> <span style="color: green;">"/hello"</span><span style="color: #4444ff;">;</span><br /><br /><strong>static</strong> <strong>int</strong> <span style="color: #2040a0;">hello_getattr</span><span style="color: #4444ff;">(</span><strong>const</strong> <strong>char</strong> <span style="color: #4444ff;">*</span><span style="color: #2040a0;">path</span>, <strong>struct</strong> <span style="color: #2040a0;">stat</span> <span style="color: #4444ff;">*</span><span style="color: #2040a0;">stbuf</span><span style="color: #4444ff;">)</span><br /><span style="color: #4444ff;"><strong>{</strong></span><br /> <strong>int</strong> <span style="color: #2040a0;">res</span> <span style="color: #4444ff;">=</span> <span style="color: red;">0</span><span style="color: #4444ff;">;</span><br /><br /> <span style="color: #2040a0;">memset</span><span style="color: #4444ff;">(</span><span style="color: #2040a0;">stbuf</span>, <span style="color: red;">0</span>, <strong>sizeof</strong><span style="color: #4444ff;">(</span><strong>struct</strong> <span style="color: #2040a0;">stat</span><span style="color: #4444ff;">)</span><span style="color: #4444ff;">)</span><span style="color: #4444ff;">;</span><br /> <strong>if</strong> <span style="color: #4444ff;">(</span><span style="color: #2040a0;">strcmp</span><span style="color: #4444ff;">(</span><span style="color: #2040a0;">path</span>, <span style="color: green;">"/"</span><span style="color: #4444ff;">)</span> <span style="color: #4444ff;">=</span><span style="color: #4444ff;">=</span> <span style="color: red;">0</span><span style="color: #4444ff;">)</span> <span style="color: #4444ff;"><strong>{</strong></span><br /> <span style="color: #2040a0;">stbuf</span><span style="color: #4444ff;">-</span><span style="color: #4444ff;">></span><span style="color: #2040a0;">st_mode</span> <span style="color: #4444ff;">=</span> <span style="color: #2040a0;">S_IFDIR</span> <span style="color: #4444ff;">|</span> <span style="color: red;">0755</span><span style="color: #4444ff;">;</span><br /> <span style="color: #2040a0;">stbuf</span><span style="color: #4444ff;">-</span><span style="color: #4444ff;">></span><span style="color: #2040a0;">st_nlink</span> <span style="color: #4444ff;">=</span> <span style="color: red;">2</span><span style="color: #4444ff;">;</span><br /> <span style="color: #4444ff;"><strong>}</strong></span> <strong>else</strong> <strong>if</strong> <span style="color: #4444ff;">(</span><span style="color: #2040a0;">strcmp</span><span style="color: #4444ff;">(</span><span style="color: #2040a0;">path</span>, <span style="color: #2040a0;">hello_path</span><span style="color: #4444ff;">)</span> <span style="color: #4444ff;">=</span><span style="color: #4444ff;">=</span> <span style="color: red;">0</span><span style="color: #4444ff;">)</span> <span style="color: #4444ff;"><strong>{</strong></span><br /> <span style="color: #2040a0;">stbuf</span><span style="color: #4444ff;">-</span><span style="color: #4444ff;">></span><span style="color: #2040a0;">st_mode</span> <span style="color: #4444ff;">=</span> <span style="color: #2040a0;">S_IFREG</span> <span style="color: #4444ff;">|</span> <span style="color: red;">0444</span><span style="color: #4444ff;">;</span><br /> <span style="color: #2040a0;">stbuf</span><span style="color: #4444ff;">-</span><span style="color: #4444ff;">></span><span style="color: #2040a0;">st_nlink</span> <span style="color: #4444ff;">=</span> <span style="color: red;">1</span><span style="color: #4444ff;">;</span><br /> <span style="color: #2040a0;">stbuf</span><span style="color: #4444ff;">-</span><span style="color: #4444ff;">></span><span style="color: #2040a0;">st_size</span> <span style="color: #4444ff;">=</span> <span style="color: #2040a0;">strlen</span><span style="color: #4444ff;">(</span><span style="color: #2040a0;">hello_str</span><span style="color: #4444ff;">)</span><span style="color: #4444ff;">;</span><br /> <span style="color: #4444ff;"><strong>}</strong></span> <strong>else</strong><br /> <span style="color: #2040a0;">res</span> <span style="color: #4444ff;">=</span> <span style="color: #4444ff;">-</span><span style="color: #2040a0;">ENOENT</span><span style="color: #4444ff;">;</span><br /><br /> <strong>return</strong> <span style="color: #2040a0;">res</span><span style="color: #4444ff;">;</span><br /><span style="color: #4444ff;"><strong>}</strong></span><br /><br /><strong>static</strong> <strong>int</strong> <span style="color: #2040a0;">hello_readdir</span><span style="color: #4444ff;">(</span><strong>const</strong> <strong>char</strong> <span style="color: #4444ff;">*</span><span style="color: #2040a0;">path</span>, <strong>void</strong> <span style="color: #4444ff;">*</span><span style="color: #2040a0;">buf</span>, <span style="color: #2040a0;">fuse_fill_dir_t</span> <span style="color: #2040a0;">filler</span>,<br /> <span style="color: #2040a0;">off_t</span> <span style="color: #2040a0;">offset</span>, <strong>struct</strong> <span style="color: #2040a0;">fuse_file_info</span> <span style="color: #4444ff;">*</span><span style="color: #2040a0;">fi</span><span style="color: #4444ff;">)</span><br /><span style="color: #4444ff;"><strong>{</strong></span><br /> <span style="color: #4444ff;">(</span><strong>void</strong><span style="color: #4444ff;">)</span> <span style="color: #2040a0;">offset</span><span style="color: #4444ff;">;</span><br /> <span style="color: #4444ff;">(</span><strong>void</strong><span style="color: #4444ff;">)</span> <span style="color: #2040a0;">fi</span><span style="color: #4444ff;">;</span><br /><br /> <strong>if</strong> <span style="color: #4444ff;">(</span><span style="color: #2040a0;">strcmp</span><span style="color: #4444ff;">(</span><span style="color: #2040a0;">path</span>, <span style="color: green;">"/"</span><span style="color: #4444ff;">)</span> <span style="color: #4444ff;">!</span><span style="color: #4444ff;">=</span> <span style="color: red;">0</span><span style="color: #4444ff;">)</span><br /> <strong>return</strong> <span style="color: #4444ff;">-</span><span style="color: #2040a0;">ENOENT</span><span style="color: #4444ff;">;</span><br /><br /> <span style="color: #2040a0;">filler</span><span style="color: #4444ff;">(</span><span style="color: #2040a0;">buf</span>, <span style="color: green;">"."</span>, <span style="color: #2040a0;">NULL</span>, <span style="color: red;">0</span><span style="color: #4444ff;">)</span><span style="color: #4444ff;">;</span><br /> <span style="color: #2040a0;">filler</span><span style="color: #4444ff;">(</span><span style="color: #2040a0;">buf</span>, <span style="color: green;">".."</span>, <span style="color: #2040a0;">NULL</span>, <span style="color: red;">0</span><span style="color: #4444ff;">)</span><span style="color: #4444ff;">;</span><br /> <span style="color: #2040a0;">filler</span><span style="color: #4444ff;">(</span><span style="color: #2040a0;">buf</span>, <span style="color: #2040a0;">hello_path</span> <span style="color: #4444ff;">+</span> <span style="color: red;">1</span>, <span style="color: #2040a0;">NULL</span>, <span style="color: red;">0</span><span style="color: #4444ff;">)</span><span style="color: #4444ff;">;</span><br /><br /> <strong>return</strong> <span style="color: red;">0</span><span style="color: #4444ff;">;</span><br /><span style="color: #4444ff;"><strong>}</strong></span><br /><br /><strong>static</strong> <strong>int</strong> <span style="color: #2040a0;">hello_open</span><span style="color: #4444ff;">(</span><strong>const</strong> <strong>char</strong> <span style="color: #4444ff;">*</span><span style="color: #2040a0;">path</span>, <strong>struct</strong> <span style="color: #2040a0;">fuse_file_info</span> <span style="color: #4444ff;">*</span><span style="color: #2040a0;">fi</span><span style="color: #4444ff;">)</span><br /><span style="color: #4444ff;"><strong>{</strong></span><br /> <strong>if</strong> <span style="color: #4444ff;">(</span><span style="color: #2040a0;">strcmp</span><span style="color: #4444ff;">(</span><span style="color: #2040a0;">path</span>, <span style="color: #2040a0;">hello_path</span><span style="color: #4444ff;">)</span> <span style="color: #4444ff;">!</span><span style="color: #4444ff;">=</span> <span style="color: red;">0</span><span style="color: #4444ff;">)</span><br /> <strong>return</strong> <span style="color: #4444ff;">-</span><span style="color: #2040a0;">ENOENT</span><span style="color: #4444ff;">;</span><br /><br /> <strong>if</strong> <span style="color: #4444ff;">(</span><span style="color: #4444ff;">(</span><span style="color: #2040a0;">fi</span><span style="color: #4444ff;">-</span><span style="color: #4444ff;">></span><span style="color: #2040a0;">flags</span> <span style="color: #4444ff;">&</span> <span style="color: red;">3</span><span style="color: #4444ff;">)</span> <span style="color: #4444ff;">!</span><span style="color: #4444ff;">=</span> <span style="color: #2040a0;">O_RDONLY</span><span style="color: #4444ff;">)</span><br /> <strong>return</strong> <span style="color: #4444ff;">-</span><span style="color: #2040a0;">EACCES</span><span style="color: #4444ff;">;</span><br /><br /> <strong>return</strong> <span style="color: red;">0</span><span style="color: #4444ff;">;</span><br /><span style="color: #4444ff;"><strong>}</strong></span><br /><br /><strong>static</strong> <strong>int</strong> <span style="color: #2040a0;">hello_read</span><span style="color: #4444ff;">(</span><strong>const</strong> <strong>char</strong> <span style="color: #4444ff;">*</span><span style="color: #2040a0;">path</span>, <strong>char</strong> <span style="color: #4444ff;">*</span><span style="color: #2040a0;">buf</span>, <span style="color: #2040a0;">size_t</span> <span style="color: #2040a0;">size</span>, <span style="color: #2040a0;">off_t</span> <span style="color: #2040a0;">offset</span>,<br /> <strong>struct</strong> <span style="color: #2040a0;">fuse_file_info</span> <span style="color: #4444ff;">*</span><span style="color: #2040a0;">fi</span><span style="color: #4444ff;">)</span><br /><span style="color: #4444ff;"><strong>{</strong></span><br /> <span style="color: #2040a0;">size_t</span> <span style="color: #2040a0;">len</span><span style="color: #4444ff;">;</span><br /> <span style="color: #4444ff;">(</span><strong>void</strong><span style="color: #4444ff;">)</span> <span style="color: #2040a0;">fi</span><span style="color: #4444ff;">;</span><br /> <strong>if</strong><span style="color: #4444ff;">(</span><span style="color: #2040a0;">strcmp</span><span style="color: #4444ff;">(</span><span style="color: #2040a0;">path</span>, <span style="color: #2040a0;">hello_path</span><span style="color: #4444ff;">)</span> <span style="color: #4444ff;">!</span><span style="color: #4444ff;">=</span> <span style="color: red;">0</span><span style="color: #4444ff;">)</span><br /> <strong>return</strong> <span style="color: #4444ff;">-</span><span style="color: #2040a0;">ENOENT</span><span style="color: #4444ff;">;</span><br /><br /> <span style="color: #2040a0;">len</span> <span style="color: #4444ff;">=</span> <span style="color: #2040a0;">strlen</span><span style="color: #4444ff;">(</span><span style="color: #2040a0;">hello_str</span><span style="color: #4444ff;">)</span><span style="color: #4444ff;">;</span><br /> <strong>if</strong> <span style="color: #4444ff;">(</span><span style="color: #2040a0;">offset</span> <span style="color: #4444ff;"><</span> <span style="color: #2040a0;">len</span><span style="color: #4444ff;">)</span> <span style="color: #4444ff;"><strong>{</strong></span><br /> <strong>if</strong> <span style="color: #4444ff;">(</span><span style="color: #2040a0;">offset</span> <span style="color: #4444ff;">+</span> <span style="color: #2040a0;">size</span> <span style="color: #4444ff;">></span> <span style="color: #2040a0;">len</span><span style="color: #4444ff;">)</span><br /> <span style="color: #2040a0;">size</span> <span style="color: #4444ff;">=</span> <span style="color: #2040a0;">len</span> <span style="color: #4444ff;">-</span> <span style="color: #2040a0;">offset</span><span style="color: #4444ff;">;</span><br /> <span style="color: #2040a0;">memcpy</span><span style="color: #4444ff;">(</span><span style="color: #2040a0;">buf</span>, <span style="color: #2040a0;">hello_str</span> <span style="color: #4444ff;">+</span> <span style="color: #2040a0;">offset</span>, <span style="color: #2040a0;">size</span><span style="color: #4444ff;">)</span><span style="color: #4444ff;">;</span><br /> <span style="color: #4444ff;"><strong>}</strong></span> <strong>else</strong><br /> <span style="color: #2040a0;">size</span> <span style="color: #4444ff;">=</span> <span style="color: red;">0</span><span style="color: #4444ff;">;</span><br /><br /> <strong>return</strong> <span style="color: #2040a0;">size</span><span style="color: #4444ff;">;</span><br /><span style="color: #4444ff;"><strong>}</strong></span><br /><br /><strong>static</strong> <strong>struct</strong> <span style="color: #2040a0;">fuse_operations</span> <span style="color: #2040a0;">hello_oper</span> <span style="color: #4444ff;">=</span> <span style="color: #4444ff;"><strong>{</strong></span><br /> .<span style="color: #2040a0;">getattr</span> <span style="color: #4444ff;">=</span> <span style="color: #2040a0;">hello_getattr</span>,<br /> .<span style="color: #2040a0;">readdir</span> <span style="color: #4444ff;">=</span> <span style="color: #2040a0;">hello_readdir</span>,<br /> .<span style="color: #2040a0;">open</span> <span style="color: #4444ff;">=</span> <span style="color: #2040a0;">hello_open</span>,<br /> .<span style="color: #2040a0;">read</span> <span style="color: #4444ff;">=</span> <span style="color: #2040a0;">hello_read</span>,<br /><span style="color: #4444ff;"><strong>}</strong></span><span style="color: #4444ff;">;</span><br /><br /><strong>int</strong> <span style="color: #2040a0;">main</span><span style="color: #4444ff;">(</span><strong>int</strong> <span style="color: #2040a0;">argc</span>, <strong>char</strong> <span style="color: #4444ff;">*</span><span style="color: #2040a0;">argv</span><span style="color: #4444ff;">[</span><span style="color: #4444ff;">]</span><span style="color: #4444ff;">)</span><br /><span style="color: #4444ff;"><strong>{</strong></span><br /> <strong>return</strong> <span style="color: #2040a0;">fuse_main</span><span style="color: #4444ff;">(</span><span style="color: #2040a0;">argc</span>, <span style="color: #2040a0;">argv</span>, <span style="color: #4444ff;">&</span><span style="color: #2040a0;">hello_oper</span>, <span style="color: #2040a0;">NULL</span><span style="color: #4444ff;">)</span><span style="color: #4444ff;">;</span><br /><span style="color: #4444ff;"><strong>}</strong></span></pre><br /></blockquote><br />Save the file and close it.<br /><br /><span style="color: #274e13;"><b>Step 8 : </b></span>Compile the above program by<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>gcc -Wall hello.c `pkg-config fuse --cflags --libs` -o hello</b></i></span></span></blockquote></blockquote><br /><br /><span style="color: #274e13;"><b>Step 9 : </b></span>After compilation create tmp directory and run object file. Just enter the commands one-by-one given below<br /><br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"> <span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b>mkdir tmp </b></i></span></span><br /><span style="background-color: #cccccc;"><span style="color: #4c1130;"></span></span><br /><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b> ./hello tmp/ </b></i></span></span><br /><span style="background-color: #cccccc;"><span style="color: #4c1130;"></span></span><br /><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b> ls tmp/ </b></i></span></span><br /><span style="background-color: #cccccc;"><span style="color: #4c1130;"></span></span><br /><span style="background-color: #cccccc;"><span style="color: #4c1130;"><i><b> cat tmp/hello</b></i></span></span></blockquote></blockquote><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj1BXZvg9xQqvTuGkljGwgkC_o1xzeeuyfUCQ1ih9J8hMiJpiDE7G-r8Xwmpwt7x6Qb3KEiFG8JB4aq7WRXwmEzFW6YPOeFCSxW56wEC0l2P_kOcErNpYnsE91AVMcp6NDtI4mml8PN97w/s1600/fuse.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj1BXZvg9xQqvTuGkljGwgkC_o1xzeeuyfUCQ1ih9J8hMiJpiDE7G-r8Xwmpwt7x6Qb3KEiFG8JB4aq7WRXwmEzFW6YPOeFCSxW56wEC0l2P_kOcErNpYnsE91AVMcp6NDtI4mml8PN97w/s1600/fuse.png" /></a></div><br />Thats all. You are done.<br /><br />To unmount tmp directory enter the following command...<br /><br /><blockquote class="tr_bq"><blockquote class="tr_bq"><i><span style="background-color: #cccccc;"><span style="color: #4c1130;"><b>umount tmp</b></span></span></i></blockquote></blockquote><br />If you have any queries, post it in comments. We will help you.<br /><br /></div>

Filesystem in Userspace ( FUSE ) Tutorial

FUSE is an mechanism which allows to create own file systems to non-privileged users without editing the kernel code. Initially it was devel...

Read more »