Perl is a very popular web-oriented programming language, which is used to make CGI scripts and also various apps. It's very handy as you do not have to create the very same program code time and time again so that you can get some task executed more than once, but you are able to work with modules. These are pre-defined subroutines or sets of activities which can be called and executed in a script. In other words, you can include just a reference to a given module within your program code instead of using the whole module code time and time again. In this way, your script will be shorter, therefore it'll be executed quicker, not mentioning that it will be a lot easier to maintain or modify. When you would like to use some third-party ready-made Perl script rather than creating your own, it'll probably need specific modules to be present on the web hosting server.