Perl

Perl is a high-level, general-purpose, interpreted, dynamic programming language. Perl was originally developed by Larry Wall in 1987 as a general-purpose Unix scripting language to make report processing easier. Since then, it has undergone many changes and revisions and become widely popular amongst programmers. Larry Wall continues to oversee development of the core language, and its upcoming version, Perl 6. Perl borrows features from other programming languages including C, shell scripting (sh), AWK, and sed. The language provides powerful text processing facilities without the arbitrary data length limits of many contemporary Unix tools, facilitating easy manipulation of text files. Perl gained widespread popularity in the late 1990s as a CGI scripting language, in part due to its parsing abilities.

perl -MCPAN -e shell
install XML::Simple

Links

comp.leeds.ac.uk/Perl/subroutines.html
cslibrary.stanford.edu/108/EssentialPerl.html
dummies.com/how-to/content/contrasting-single-and-double-quotes-in-perl.html
en.allexperts.com/q/Perl-CGI-1045/2008/9/perl-Regular-Expression-usage.htm
linuxquestions.org/questions/other-*nix-55/calling-awk-commands-in-perl-script-596029
math.utah.edu/docs/info/gawk_5.html
oreilly.com/catalog/prkunix/excerpt/PWPMch01.html#MARKER-9-47
perl.about.com/od/perltutorials/a/readwritefiles_2.htm
perl101.org/files.html
perldoc.perl.org/perlref.html
perlmonks.org/?node_id=368332
perlmonks.org/?node_id=383935
perlmonks.org/?node_id=626676
somacon.com/p127.php
stackoverflow.com/questions/4598162/html-parsing-in-perl
stackoverflow.com/questions/6891589/how-to-create-dump-file-using-perl
stackoverflow.com/questions/799968/whats-the-difference-between-perls-backticks-system-and-exec
stackoverflow.com/questions/845060/what-is-the-difference-between-my-and-our-in-perl
stackoverflow.com/questions/974656/automatically-get-loop-index-in-foreach-loop-in-perl
thegeekstuff.com/2010/01/8-powerful-awk-built-in-variables-fs-ofs-rs-ors-nr-nf-filename-fnr
unix.com/shell-programming-scripting/116856-how-execute-grep-perl.html
unix.com/shell-programming-scripting/28419-stop-awk-adding-new-line.html
unix.com/shell-programming-scripting/79444-perl-awk-replacement-script.html 
unix.com/shell-programming-scripting/92731-remove-special-characters-text-using-perl.html
wd.iworld.com/forum/showthread.php?t=143033
wikibooks.org/wiki/Perl_Programming/Array_Variables