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Perl is a portable general-purpose dynamic programming language. It is used in a diverse variety of domains: system management scripting, text processing, web content management, Biology calculations, and others. It has a rich library of free reusable modules - the CPAN and a vibrant community of users and developers.

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Should Perl scripts really have no extension?

Installing a Perl system will probably set that up for you automatically. For Perl scripts intended to be portable, the .pl suffix required by Windows might "leak" onto UNIX-like systems. … (Perl modules need to have a .pm extension so that Perl can find them. …
Keith Thompson's user avatar