IPV4 to IPV6: Open Source Lab Programs

Python with MySQL Connectivity

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

Python with MySQL Connectivity

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

Network Interface using ifconfig

Tukiyooo 0 Open Source Lab Programs 06:29

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

GUI Programming with Python

Tukiyooo 0 Open Source Lab Programs, Python Basics 06:24

<div dir="ltr" style="text-align: left;" trbidi="on"> Install Python and python tk by <blockquote class="tr_bq"><blockquote class="tr_bq">sudo apt-get install python python-tk </blockquote></blockquote> To Run Python <blockquote class="tr_bq"><blockquote class="tr_bq">python filename.py</blockquote></blockquote> e.g python tkhello.py 1. Simple Hello World program <blockquote class="tr_bq"> import Tkinter top=Tkinter.Tk() label=Tkinter.Label(top,text="hello world") label.pack() Tkinter.mainloop()</blockquote> <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> 2. Program with exit button <blockquote class="tr_bq">import Tkinter top=Tkinter.Tk() hello=Tkinter.Label(top,text="hello"); hello.pack() quit=Tkinter.Button(top,text="quit",command =top.quit,bg="red",fg="white") quit.pack(fill=Tkinter.X,expand=1) Tkinter.mainloop()</blockquote> <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> </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...

PHP with MySQL Connectivity

Tukiyooo 0 Open Source Lab Programs, PHP 06:16

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

GUI Programming using PERL-TK

Tukiyooo 0 Open Source Lab Programs, Perl Programs 05:47

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...

Perl with MySQL Database Connectivity

Tukiyooo 0 Open Source Lab Programs, Perl Programs 05:27

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...

Simple Perl Programs

Tukiyooo 0 Open Source Lab Programs, Perl Programs 05:00

<div dir="ltr" style="text-align: left;" trbidi="on"><a href="http://en.wikipedia.org/wiki/Perl" target="_blank">Perl </a>- Practical Extraction and Report Language Perl is an interpreted scripting language. Perl is optimised for scanning arbitrary text files and system administration. 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. Installation : <blockquote class="tr_bq">sudo apt-get install perl</blockquote> Compiling method : <blockquote class="tr_bq">perl filename.pl</blockquote> e.g perl hello.pl 1. Simple mathematical calculation program <blockquote class="tr_bq">  #usr/bin/perl $str = " Hello "; print "cse:$str \n"; print "2+2 = ",2+2,"\n"; print "log(1e23) = ",log(1e23),"\n"; print "sin(3.141) = ",sin(3.141), "\n";</blockquote> <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> 2. Pattern Matching Program <blockquote> $_="hello how are you"; if(/hello/){ print "Default Variable = $_ \n"; print "Found hello \n"; } # i modifier ignore case difference if(m/HOw/i){ print "found how \n"; } #match with negation if(!/hall/){ print "Not found hall \n"; } else {  print "found\n"; }</blockquote> <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> 3. System Command Accepting Program <blockquote class="tr_bq"> $time = localtime; print "Time is now - $time \n"; print "Enter a shell command:"; $n = <STDIN>; system $n;</blockquote> <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> 4. Program for Counting Words, Lines and Characters in a File <blockquote class="tr_bq">#usr/bin/perl $filen = "fileh.pl"; open($fh,"<",$filen); while($line = <$fh>){ @lines = [split(/ +/,$line)]; $noline += scalar(@lines); $words += scalar(split(/\w+/,$line)); $chars += length($line); } print "\n No.of Lines - $noline \n        No.of Words - $words \n        No.of Characters - $chars \n";  close($fh);</blockquote> <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> 5. Program for Printing all 5 letter words in Paragraph by giving as it as input <blockquote class="tr_bq"> print "Enter a text:"; while(<>){ chop; tr/;:;.!?-//d; foreach $w (split) {   if(length($w)==5) {     print "$w \n";     $score++;           }     }}</blockquote> <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> 6. Program for Printing the words which are all end with "ly" <blockquote>print "Enter the text:"; while (<>) {    foreach $wd(split){        if($wd =~ /ly$/i) {          print " $wd \n";                  $var++;                   }          }}</blockquote>   <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> 7. Program to find average length of words in a text. #! usr/bin/perl use strict; open (FILE,"wel.txt") or die "error in open wel.txt"; my $TSentences=0; my $TWords=0; my $TLetters=0; my $AvgWordLength=0; my $AvgSentenceLength=0; while(my $line=<FILE>) { my @words=split(" ",$line); my $nwords=@words;#no of words in that line for(my $i=0;$i< $nwords;$i=$i+1) {           my @letters=split("",$words[$i]);           my $nletters=@letters;           $TLetters=$TLetters+$nletters;         } $TWords=$TWords+$nwords; $AvgWordLength=$TLetters/$TWords; } print("Total Words:$TWords\n"); print("Total letters:$TLetters\n\n"); print("The average word length (in characters):$AvgWordLength\n "); close(FILE); open (FILE,"wel.txt") or die "error in open wel.txt"; while(my $ch=getc(FILE)) {   if($ch eq "." || $ch eq "!" || $ch eq "?") {      $TSentences=$TSentences+1;   } } $AvgSentenceLength=$TWords/$TSentences; print("Total sentences:$TSentences\n"); print("The average sentence length (in words):$AvgSentenceLength \n"); exit(0); <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> 8. Program to count the frequency of words in text # Clear word hash %words = (); print "What is the text you wish to analyze? \n"; print "Please include the filename and extension \n\n"; $textfile = <>;                                   # Read the filename from the keyboard input chop $textfile;                                                # Remove line return print "Now analyzing lexical frequency in $textfile\n\n"; open text_in, "< $textfile"; while ($line = <text_in>) {    chomp($line);                                                           # Remove line returns    $line = lc($line);                                                       # Change to lower case    $line = ' ' . $line . ' ';                                                 # Add spaces    $line =~ s/["(),;:.!?]/ /g;                                            # Remove punctuation    @words = split (" ", $line );                                     # Put words into an array       foreach $word (@words) {          $words{$word} = $words{$word} + 1;             # Put word and word frequency in hash       } #end foreach word } #end while close text_in; # Display the results foreach $word (sort keys %words) {                          # Sort the word hash    print "$word $words{$word}\n";                        # Print word and frequency    } <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...

Working on Version Control System

Tukiyooo 0 Bodhi Linux, Edubuntu, elementary OS, how to, Kubuntu, LInux Mint, linux tricks, Lubuntu, Open Source Lab Programs, Pear Linux, pinguy, ubuntu, Ubuntu GNOME, ubuntu tricks, Zorin OS 04:28

<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. Installation : For Ubuntu based distro users <blockquote class="tr_bq"><blockquote class="tr_bq">sudo apt-get install mercurial</blockquote></blockquote> For Fedora users <blockquote class="tr_bq"><blockquote class="tr_bq">sudo yum install mercurial</blockquote></blockquote> For OpenSUSE users <blockquote class="tr_bq"><blockquote class="tr_bq">sudo zypper install mercurial</blockquote></blockquote> For Gentoo users   <blockquote class="tr_bq"><blockquote class="tr_bq">sudo emerge mercurial</blockquote></blockquote> Working on Version Control System : First create new directory to configure the repository of the version of the program. So just create new directory by, <blockquote class="tr_bq"><blockquote class="tr_bq">mkdir hg</blockquote></blockquote> Move to this hg directory by <blockquote class="tr_bq"><blockquote class="tr_bq">cd hg</blockquote></blockquote> Just create some program files or text files. Here i'm gonna  to create a.txt file <blockquote class="tr_bq"><blockquote class="tr_bq">gedit a.txt</blockquote></blockquote> Then type anything in this files, save it and close it. After the file creation, Create repository of your hg directory by <blockquote class="tr_bq"><blockquote class="tr_bq">hg init</blockquote></blockquote> Then add a.txt file to version tracking system by <blockquote class="tr_bq"><blockquote class="tr_bq">hg add a.txt</blockquote></blockquote> Now save the current position of the file details using commit command. <blockquote class="tr_bq"><blockquote class="tr_bq">hg commit -u author -m "message"</blockquote></blockquote> 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. Now check the changes of the file contents by <blockquote class="tr_bq"> <blockquote class="tr_bq">cat a.txt</blockquote></blockquote> It will show the a.txt file contents after you modified. If you wanna to go to previous version, then just revert it by <blockquote class="tr_bq"><blockquote class="tr_bq">hg revert a.txt</blockquote></blockquote> Now check the file contents by <blockquote class="tr_bq"><blockquote class="tr_bq">cat a.txt</blockquote></blockquote> it will show the previous version contents. Check the log file details by <blockquote class="tr_bq"> <blockquote class="tr_bq">hg log</blockquote></blockquote> Check the differences between two versions by <blockquote class="tr_bq"><blockquote class="tr_bq">hg diff --rev 0:1</blockquote></blockquote> 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. <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">LINK 1</a></blockquote></blockquote> <blockquote class="tr_bq"><blockquote class="tr_bq"><a href="http://www.selenic.com/mercurial/hg.1.html" target="_blank">LINK 2</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...

Developing GUI programs using the Qt toolkit on Ubutnu based distros

Tukiyooo 0 Bodhi Linux, Edubuntu, elementary OS, how to, Kubuntu, LInux Mint, linux tricks, Lubuntu, Open Source Lab Programs, Pear Linux, pinguy, pinguy OS, ubuntu, Ubuntu GNOME, ubuntu tricks, Xubuntu, Zorin OS 23:39

<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. 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. 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. Let we see about Simple 3 GUI programs to develop using Qt. Before starting the GUI programming with Qt , you must be install Qt Toolkit. 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. Installing Required Tools : Step 1 : Open Terminal by Accessories -> Terminal or press CTRL+ALT+T Step 2 : To install the required tools, copy the command and paste in to the terminal and press enter to install it. <blockquote class="tr_bq"><blockquote class="tr_bq">sudo apt-get install qt4-qmake qt4-default qconf</blockquote></blockquote> qt4-qmake <blockquote class="tr_bq">Qt 4 qmake requires a platform and compiler description file which contains many default values used to generate appropriate Makefiles. </blockquote>qt4-default <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>qconf <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> Developing GUI Programs :  Step 1 : First create the common directory for Qt programs. To create a directory, enter the following command in Terminal <blockquote class="tr_bq"><blockquote class="tr_bq">mkdir qtgui</blockquote></blockquote> Then change the working path to qtgui as <blockquote class="tr_bq"><blockquote class="tr_bq">cd qtgui</blockquote></blockquote> Step 2 : Now will see first program of simple hello world program. For this create new directory "qthellopgm" as <blockquote class="tr_bq"><blockquote class="tr_bq">mkdir qthellopgm</blockquote></blockquote> Change working path to this directory as <blockquote class="tr_bq"> <blockquote class="tr_bq">cd qthellopgm</blockquote></blockquote> Then create hello world program using C++. Call gedit ( Text editor ) to open new program by <blockquote class="tr_bq"><blockquote class="tr_bq">gedit qthellopgm.cpp</blockquote></blockquote> And then copy the following code and paste into the qthellopgm.cpp file. <blockquote class="tr_bq"><blockquote class="tr_bq">#include <QtGui> int main(int argc, char *argv[]) { QApplication app(argc, argv); QWidget window; window.resize(320, 240); window.setWindowTitle("Hello World!"); window.show(); return app.exec(); }</blockquote></blockquote> Save the program in gedit and close it. After using Qt toolkit, first make the qthellopgm.cpp as project by <blockquote class="tr_bq"><blockquote class="tr_bq">qmake-qt4 -project</blockquote></blockquote> When the project was successfully created , then use qmake-qt4 compiler to compile the code. <blockquote class="tr_bq"><blockquote class="tr_bq">qmake-qt4 </blockquote></blockquote> 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. <blockquote class="tr_bq"><blockquote class="tr_bq">make</blockquote></blockquote> Check the screen-shot below... <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> Close the Hello World! window to exit it. Step 3 : Let we see the second program to create a window with a button: Move to common directory (qtgui directory) by <blockquote class="tr_bq"><blockquote class="tr_bq">cd ..</blockquote></blockquote> Create new directory "qtbuttonpgm" as <blockquote class="tr_bq"><blockquote class="tr_bq">mkdir qtbuttonpgm</blockquote></blockquote> Move to this directory by <blockquote class="tr_bq"> <blockquote class="tr_bq">cd qtbuttonpgm</blockquote></blockquote> Then create qtbuttonpgm.cpp file to create a window with a button by <blockquote class="tr_bq"><blockquote class="tr_bq">gedit qtbuttonpgm.cpp</blockquote></blockquote> Now copy the following code and paste into it. <blockquote class="tr_bq"><blockquote class="tr_bq">#include <QtGui> int main(int argc, char *argv[]) { QApplication app(argc, argv); QWidget window; window.resize(320, 240); window.setWindowTitle("Window with a button"); window.show(); QPushButton *button = new QPushButton("Press me", &window); button->move(100, 100); button->show(); return app.exec(); }</blockquote></blockquote> Save it and close it. After follow the same steps compiled and executed in first program. Just enter the following commands one-by-one. <blockquote class="tr_bq"><blockquote class="tr_bq">qmake-qt4 -project qmake-qt4 make</blockquote></blockquote> when you successfully make it, you will get the window with just press me button. <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> Clsoe the button window to exit from it. Step 4 : Finally we will see the third window program with two widgets managed by a layout manager. Move to common directory (qtgui directory) by <blockquote class="tr_bq"><blockquote class="tr_bq">cd ..</blockquote></blockquote> Create new directory "qtlayoutpgm" as <blockquote class="tr_bq"><blockquote class="tr_bq">mkdir qtlayoutpgm</blockquote></blockquote> Move to this directory by <blockquote class="tr_bq"><blockquote class="tr_bq">cd qtlayoutpgm</blockquote></blockquote> Then create qtlayoutpgm.cpp file to create a window with a button by <blockquote class="tr_bq"> <blockquote class="tr_bq">gedit qtlayoutpgm.cpp</blockquote></blockquote> Now copy the following code and paste into it. <blockquote class="tr_bq"><blockquote class="tr_bq">#include <QtGui> int main(int argc, char *argv[]) { QApplication app(argc, argv); QWidget window; QLabel *label = new QLabel("Name:"); QLineEdit *lineEdit = new QLineEdit(); QHBoxLayout *layout = new QHBoxLayout(); layout->addWidget(label); layout->addWidget(lineEdit); window.setLayout(layout); window.setWindowTitle("Window layout"); window.show(); return app.exec(); }</blockquote></blockquote> Save it and close it. After follow the same steps compiled and executed in first program. Just enter the following commands one-by-one. <blockquote class="tr_bq"><blockquote class="tr_bq">qmake-qt4 -project qmake-qt4 make</blockquote></blockquote> when you successfully make it,you will get the following result. <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> </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. ...

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

Tukiyooo 0 Bodhi Linux, Edubuntu, elementary OS, how to, Kubuntu, LInux Mint, linux tricks, Lubuntu, Open Source Lab Programs, pinguy, ubuntu, Ubuntu GNOME, ubuntu tricks, Xubuntu, Zorin OS 08:41

<div dir="ltr" style="text-align: left;" trbidi="on"> 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. 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. Installation : Step 1 : First Install CUPS in your machine, if not existing. By default Ubuntu comes with CUPS. If still not existing, then install it by <blockquote class="tr_bq">For Ubuntu based linux users </blockquote> <blockquote class="tr_bq"> <blockquote class="tr_bq"><blockquote class="tr_bq">sudo apt-get install cups</blockquote></blockquote></blockquote> <blockquote class="tr_bq">For Fedora users </blockquote> <blockquote class="tr_bq"><blockquote class="tr_bq"><blockquote class="tr_bq">sudo yum install cups </blockquote></blockquote></blockquote> <div class="separator" style="clear: both; text-align: center;"></div>Working : Step 2 : And then Open your Browser and enter the following command in browser's address bar. <blockquote class="tr_bq"><blockquote class="tr_bq">http://localhost:631/</blockquote></blockquote> Now you will see CUPS 1.6.2 version on your browsres. Its easy to understand it. Just go to Administaration -> Add printer and click the button. <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> Step 3 : Add the Printer Type which you want to setup with your main windown.   <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> Step 4 : Set your own url for accessing the printer. <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> Step 5 : In this step just Enter necessary details about your printer. <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;"> </div><div class="separator" style="clear: both; text-align: left;"> </div> Step 6 : Select Model of Printer and press Add printer. <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;"> </div><div class="separator" style="clear: both; text-align: left;">Step 7 : Now select Model category type and press Add Printer </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/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> Step 8 : In this step configure the paper size for printing page. <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;"> </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> <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;"> </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> <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> </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...

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

Tukiyooo 0 Bodhi Linux, Downloads, Edubuntu, elementary OS, how to, Kubuntu, linux tricks, Lubuntu, Open Source Lab Programs, Pear Linux, pinguy, ubuntu, Ubuntu GNOME, ubuntu tricks, Xubuntu, Zorin OS 06:31

<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. Step 1 : First install samba in your machine. Open Terminal by Accessories -> Terminal or CTRL+ALT+T <blockquote class="tr_bq"> For Fedora users  <blockquote class="tr_bq">sudo yum install samba</blockquote>  For Ubuntu / Linux Mint / Zorin OS / OS4 OpenLinux / Lubuntu / elementary OS / Bodhi Linux / Kubuntu / Ubuntu GNOME / Xubuntu  / Pear Linux / Pinguy OS / Edubuntu  users <blockquote class="tr_bq">sudo apt-get install samba</blockquote></blockquote> Step 2 : 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. Then Right click on the directory and choose Properties. Here for example i just created directory called "Pictures" and Open properties by right clicking on this directory. After select "Share" tab on Properties window.  Then click mark on following fields. -> Share this folder -> Allow others to create and delete files in this folder -> Guest access ( for people without a user account ) <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> If you want to set sharing with password access, then unmark the Guess access field. After click on Create Share to activate sharing file option. Now you will get this pop window asking you to apply permissions automatically. <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> That's all you are finished to creating sharing. When you are finished sharing option, your sharing folder will look like this. <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> Step 3 : After created sharing, send your machine IP to your friend to access the shared files. If you don't know how to check IP of your machine, Enter the following commands in your terminal. Linux Machine users enter this command in terminal ==> ifconfig Windows Machine users enter this command in CMD ==> ipconfg <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> Step 4 : Then copy the IP from terminal. The Open any folder and Press CTRL+L and then enter following address in your location bar. <blockquote class="tr_bq"><blockquote class="tr_bq">smb://192.168.42.49</blockquote></blockquote> 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. That's all. Now you will see the shared files. <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> Then just open the folder and access the files in it. If you want to access connection from windows system, Go to My computer  and enter the IP address in address bar in the below format. <blockquote class="tr_bq"> <blockquote class="tr_bq">\\192.160.2.14</blockquote></blockquote> Replace IP address with your machine IP address... <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> 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 ...

Filesystem in Userspace ( FUSE ) Tutorial

Tukiyooo 0 Bodhi Linux, debian, Edubuntu, fedora, Lubuntu, Open Source Lab Programs, Pear Linux, pinguy OS, ubuntu, Ubuntu GNOME, ubuntu tricks, Xubuntu, Zorin OS 01:35

<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. <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> Installation : To use FUSE , you must be install this on your system. Just follow my steps. Step 1 : Download FUSE 2.9.3 ( latest version ) from the following link. <blockquote class="tr_bq"><blockquote class="tr_bq">==> <a href="http://sourceforge.net/projects/fuse/files/fuse-2.X/2.9.3/" target="_blank">FUSE 2.9.3.tar.gz</a></blockquote></blockquote>Step 2 : After downloaded FUSE, open terminal and move to Downloads directory by <blockquote class="tr_bq"><blockquote class="tr_bq">cd Downloads</blockquote></blockquote> Step 3 : Extract FUSE 2.9.3.tar.gz file by <blockquote class="tr_bq"><blockquote class="tr_bq">tar -zxvf fuse-2.9.3.tar.gz</blockquote></blockquote> Step 4 : Move to fuse-2.9.3 directory by <blockquote class="tr_bq"><blockquote class="tr_bq">cd fuse-2.9.3</blockquote></blockquote> Step 5 : Install FUSE by <blockquote class="tr_bq"><blockquote class="tr_bq">sudo ./configure sudo make sudo make install</blockquote></blockquote> Working : Step 6 : Just create a new directory to work with on FUSE by <blockquote class="tr_bq"><blockquote class="tr_bq">mkdir fusep</blockquote></blockquote> move to fusep directory as <blockquote class="tr_bq"> <blockquote class="tr_bq">cd fusep</blockquote></blockquote> Step 7 : Create simple helloworld program using  C program by <blockquote class="tr_bq"><blockquote class="tr_bq">gedit hello.c</blockquote></blockquote> Now copy the following program and paste into hello.c file <blockquote class="tr_bq"> <pre>#define FUSE_USE_VERSION 26 #include <fuse.h> #include <stdio.h> #include <string.h> #include <errno.h> #include <fcntl.h> static const char *hello_str = "Hello World!\n"; static const char *hello_path = "/hello"; static int hello_getattr(const char *path, struct stat *stbuf) { int res = 0; memset(stbuf, 0, sizeof(struct stat)); if (strcmp(path, "/") == 0) { stbuf->st_mode = S_IFDIR | 0755; stbuf->st_nlink = 2; } else if (strcmp(path, hello_path) == 0) { stbuf->st_mode = S_IFREG | 0444; stbuf->st_nlink = 1; stbuf->st_size = strlen(hello_str); } else res = -ENOENT; return res; } static int hello_readdir(const char *path, void *buf, fuse_fill_dir_t filler, off_t offset, struct fuse_file_info *fi) { (void) offset; (void) fi; if (strcmp(path, "/") != 0) return -ENOENT; filler(buf, ".", NULL, 0); filler(buf, "..", NULL, 0); filler(buf, hello_path + 1, NULL, 0); return 0; } static int hello_open(const char *path, struct fuse_file_info *fi) { if (strcmp(path, hello_path) != 0) return -ENOENT; if ((fi->flags & 3) != O_RDONLY) return -EACCES; return 0; } static int hello_read(const char *path, char *buf, size_t size, off_t offset, struct fuse_file_info *fi) { size_t len; (void) fi; if(strcmp(path, hello_path) != 0) return -ENOENT; len = strlen(hello_str); if (offset < len) { if (offset + size > len) size = len - offset; memcpy(buf, hello_str + offset, size); } else size = 0; return size; } static struct fuse_operations hello_oper = { .getattr = hello_getattr, .readdir = hello_readdir, .open = hello_open, .read = hello_read, }; int main(int argc, char *argv[]) { return fuse_main(argc, argv, &hello_oper, NULL); }</pre> </blockquote> Save the file and close it. Step 8 : Compile the above program by <blockquote class="tr_bq"><blockquote class="tr_bq">gcc -Wall hello.c `pkg-config fuse --cflags --libs` -o hello</blockquote></blockquote> Step 9 : After compilation create tmp directory and run object file. Just enter the commands one-by-one given below <blockquote class="tr_bq"><blockquote class="tr_bq"> mkdir tmp ./hello tmp/ ls tmp/ cat tmp/hello</blockquote></blockquote> <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> Thats all. You are done. To unmount tmp directory enter the following command... <blockquote class="tr_bq"><blockquote class="tr_bq">umount tmp</blockquote></blockquote> If you have any queries, post it in comments. We will help you. </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...

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Filesystem in Userspace ( FUSE ) Tutorial

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