27.1. Introduction to Perl Modules
The Perl programming language has many of its functions in separate modules, which are loaded only when they need them by Perl scripts. The standard distribution of Perl includes many modules, but there are far more available that can be installed separately. Modules exist for a wide variety of purposes, such as connecting to databases, creating images, using network protocols, and parsing data formats.
All Perl modules have short names like GD or Net::Telnet. All those that have multi-part names separated by double-colons are part of a family of related modules, which are often packaged together. Modules are distributed in tar.gz files which need to be extracted and compiled before they can be installed. Often, ...
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