ପର୍ଲ୍ (ପ୍ରୋଗ୍ରାମିଂ ଭାଷା)

ପର୍ଲ୍ ଏକ ଉଚ୍ଚ-ସ୍ତରୀୟ କମ୍ପ୍ୟୁଟର ପ୍ରୋଗ୍ରାମିଂ ଭାଷା ଅଟେ । ୧୯୮୭ରେ ଲାରୀ ୱାଲ୍ ଏହାକୁ ତିଆରି କରିଥିଲେ ।

Perl

ପାରାଡ଼ିଜିମ୍‌	multi-paradigm: functional, imperative, object-oriented (class-based), reflective, procedural, data-driven, generic
ପ୍ରଥମେ ଦେଖାଯାଇଥିଲା	1987
ଡିଜାଇନ କରିଥିଲେ	Larry Wall
ବିକାଶକ	Larry Wall
ସ୍ଥାୟୀ ରିଲିଜ	5.24.0 (ମଇ 9, 2016 (2016-05-09))
ପୂର୍ବାଲୋକନ ରିଲିଜ	5.19.5 (ଅକ୍ଟୋବର 20, 2013 (2013-10-20))
ଟାଇପିଂ ପଦ୍ଧତି	Dynamic
ଏହାକୁ ପ୍ରଭାବିତ କରିଛନ୍ତି	AWK, Smalltalk 80, Lisp, C, C++, sed, Unix shell, Pascal
ଏହା ଦ୍ଵାରା ପ୍ରଭାବିତ ହୋଇଛନ୍ତି	Python, PHP, Ruby, ECMAScript, LPC, Windows PowerShell, JavaScript, Falcon, Perl 6, Qore
Implementation language	C
ଅପେରେଟିଂ ସିଷ୍ଟମ	Cross-platform
ସତ୍ତ୍ଵ	GNU General Public License or Artistic License
ଫାଇଲ ଏକ୍ସଟେନ୍‌ସନ୍	.pl .pm .t .pod
ୱେବସାଇଟ	www.perl.org
Perl Programming at Wikibooks

କିଛି ଉଦାହରଣ

In older versions of Perl, one would write the Hello World program as:

    print "Hello World!\n";

In later versions, which support the say statement, one can also write it as:

    use 5.010;
    say "Hello World!";

Good Perl practices require more complex programs to add the use strict; and use warnings; pragmas, leading into something like:

    use strict;
    use warnings;

    print "Hello World!\n";

Here is a more complex Perl program, that counts down the seconds up to a given threshold:

 #!/usr/bin/perl
 use strict;
 use warnings;
 use IO::Handle;

 my ( $remaining, $total );

 $remaining = $total = shift(@ARGV);

 STDOUT->autoflush(1);

 while ( $remaining ) {
  printf ( "Remaining %s/%s \r", $remaining--, $total );
  sleep 1;
 }

 print "\n";

The perl interpreter can also be used for one-off scripts on the command line. The following example as invoked from an sh-compatible shell such as Bash translates the string "Bob" in all files ending with .txt in the current directory to "Robert":

     $ perl -i.bak -lp -e 's/Bob/Robert/g' *.txt

ଅଧିକ ପଢନ୍ତୁ

• Learning Perl 6th Edition (2011), O'Reilly. Beginner-level introduction to Perl.
• Beginning Perl 1st Edition (2012), Wrox. A beginner's tutorial for those new to programming or just new to Perl.
• Modern Perl Archived 2011-12-22 at the Wayback Machine. 2nd Edition (2012), Onyx Neon. Describes Modern Perl programming techniques.
• Programming Perl 4th Edition (2012), O'Reilly. The definitive Perl reference.
• Effective Perl Programming 2nd Edition (2010), Addison-Wesley. Intermediate- to advanced-level guide to writing idiomatic Perl.
• Perl Cookbook, ISBN 0-596-00313-7. Practical Perl programming examples.
• Dominus, Mark Jason (2005). Higher Order Perl. Morgan Kaufmann. ISBN 1-55860-701-3. Functional programming techniques in Perl.

ବାହାଡ଼ ଲିଙ୍କ

• Official website Perl.org
• Comprehensive Perl Archive Network The canonical location for Perl code and modules
• The Perl Foundation
• PerlMonks A community committed to sharing Perl knowledge and coding tips