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About Perl
Perl, also Practical Extraction and Report Language (a backronym, see
below), is an interpreted procedural programming language designed by
Larry Wall. Perl borrows features from C, shell scripting (sh), awk, sed,
and (to a lesser extent) many other programming languages.
Perl is a general-purpose programming language originally developed for
text manipulation and now used for a wide range of tasks including
system administration, web development, network programming, GUI
development, and more.
The language is intended to be practical (easy to use, efficient,
complete) rather than beautiful (tiny, elegant, minimal). Its major
features are that it's easy to use, supports both procedural and
object-oriented (OO) programming, has powerful built-in support for text
processing, and has one of the world's most impressive collections of
third-party modules.
Application of Perl
Perl has been used since the early days
of the web to write CGI scripts, and is a component of the popular LAMP
(Linux/Apache/MySQL/(Perl/PHP/Python)) platform for web development.
Perl has been called "the glue that holds the web together". Large
systems written in Perl include Slashdot and early implementations of
PHP [1] (http://www.php.net/history) and Wikipedia.
Perl finds many applications as a "glue language", tying together
systems and interfaces that were not specifically designed to
interoperate. Systems administrators use Perl as an all-purpose tool;
short Perl programs can be entered and run on a single command line.
Perl is widely used in finance and bioinformatics, where it is valued
for rapid application development, ability to handle large data sets,
and the availability of many standard and 3rd-party modules.
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