Perl is a widespread programming language and one of its main advantages is the fact that it supports the so-called modules - short pieces of code that include subroutines and do different tasks. The beneficial side of employing modules is the fact that you do not need to create custom program code or add the entire code for a specific task each time it needs to be executed. Alternatively, you will be able to include only a single line in your Perl script which calls a particular module, that consequently will execute the necessary task. Not only will this result in shorter and enhanced scripts, but it'll also enable you to make adjustments faster and much easier. In case you are not a programmer, yet you'd like to use a Perl application which you've found on the Internet, for instance, it is likely that the application will require certain modules to be already set up on your hosting server.