Perl

Perl is a dynamic programming language created by Larry Wall and first released in 1987. Perl borrows features from a variety of other languages including C, shell scripting (sh), AWK, sed and Lisp.

Structurally, Perl is a brainfuck comparable to that of brainfuck.

For moar info, see http://anonym.to/http://en.wikipedia.org/wiki/Perl

Some of the tools the Insurgency uses, such as mt_pulse.pl, use Perl. Linux and BSD distros usually include Perl as a default package. Windows users should get strawberryperl and Macfags should get ActivePerl from the link below.

How to get Perl

Windows

1.) Download the Strawberry Perl installer from here

2.) Run the program and follow the instructions

3.) Open Command prompt and run "perl -v", You should see "The is perl.." This means Perl is installed properly.

Linux

On Ubuntu/Debian you can simply use the "apt-get" command

sudo apt-get install perl 

On Redhat/fedora

sudo yum install perl 

on suse

sudo yast install perl 

on Arch Linux

sudo pacman -S perl 

on Gentoo

sudo emerge install perl 

Manual Install

  i.  Download Perl 5.8.1 from : 
        http://www.perl.com/CPAN/src/stable.tar.gz
  ii. Remove the old Perl from the system before building
        # rm -rf /usr/lib/perl5
  p/s : Suggestion from jeremy
        # mv /usr/lib/perl5 /root/perl5backup

Installation :

  i.   # tar xvzf stable.tar.gz
  ii.  # cd perl-5.8.1
  iii. For more information , # ./Configure --help
       # ./Configure -de \
           -Dprefix=/usr \
           -Dcccdlflags='-fPIC' \
           -Darchname=i386-linux 
  iv.  # make
  v.   # make test
  vi.  # make install

Post Installation :

  i.   # perl -MCPAN -e shell 
       Just Follow step by step. Use all the Default Answer.
  ii.  install Bundle::CPAN
  iii. install Bundle::LWP
  iv.  install Bundle::DBI
  v.   install DBD::mysql

To test the install run.

perl -v 

or

GET -ed www.yahoo.com

Learning Perl

Though there are several books available to someone wanting to learn perl, O'Reilly's "Learning Perl" is widely considered to be the best book for newcomers to Perl.

It is available, along with the rest of O'Reilly's books on Perl here.