Perl is a well-liked web-oriented computer programming language, which is used to generate CGI scripts along with many different applications. It's very practical for the reason that you do not need to create the very same program code over and over again so that you can get some action executed a couple of times, but you can apply modules. They are pre-defined subroutines or groups of activities that can be called and executed within a script. In other words, you'll be able to include only a reference to a certain module inside your program code instead of using the whole module code over and over again. In this way, your script will be shorter, which means that it shall be executed much faster, not mentioning that it'll be much simpler to maintain or modify. If you want to take advantage of a third-party ready-made Perl script as an alternative to creating your own, it'll most likely need certain modules to be pre-installed on the web hosting server.