Perl is a widely used programming language and one of its main advantages is the fact that it works with the so-called modules - short pieces of code which include subroutines and execute multiple tasks. The practical side of employing modules is the fact that you don't need to write custom-made code or add the entire code for some task every single time it needs to be performed. Instead, you'll be able to include only one line in your Perl script that calls a particular module, which consequently will execute the needed action. Not only will this provide you with shorter and improved scripts, but it'll also help you make adjustments a lot quicker and much easier. In case you are not a programmer, but you would like to employ a Perl application that you've discovered on the worldwide web, for instance, it is very likely that the app will require certain modules to be already installed on your website hosting server.