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perl

Perl is a programming language developed by Larry Wall, especially designed for text processing. Though Perl is not officially an acronym but many times it is used as it stands for Practical Extraction and Report Language. It runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX.
The language is intended to be practical (easy to use, efficient,complete) rather than beautiful (tiny, elegant, minimal).It combines (in the author's opinion, anyway) some of the best features of sed, awk, and sh, making it familiar and easy to use for Unix users to whip up quick solutions to annoying problems.  Its general-purpose programming facilities support procedural, functional, and object-oriented programming paradigms, making Perl a comfortable language for the long haul on major projects, whatever your bent.

Perl's roots in text processing haven't been forgotten over the years.It still boasts some of the most powerful regular expressions to be found anywhere, and its support for Unicode text is world-class.  

learn more about perl here 
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