perl is an acronym for Practical Extraction and Report Language. It is a high-level, general-purpose, dynamic programming language. It was originally written by Larry Wall in 1987. Perl is one most popular dynamic languages for writing Web applications. Popular website such as Craigslist, IMDB, Slashdot and many other high-traffic websites use Perl extensively. Perl is also popular among the sys admins for writing apps to automate UNIX and Linux servers system administration tasks such as backup, adding users, monitoring server and much more.