Perl is a well-liked scripting language which is that is used to create various web-oriented apps, such as CGI scripts. Among the features which distinguish it from many other languages is the use of modules - batches of Perl code that complete predefined jobs and they are universally accepted. In simple terms, rather than writing tailor-made program code to do something or pasting tens and hundreds of lines of code in the script, you are able to "call" some module which is already available for this particular job and use only several lines of code. Consequently, your script will be executed a lot faster since it will be much smaller. Employing modules will additionally make your script much easier to change because you'll have to go through much less code. In case you would like to use Perl on your site, you should ensure that the required modules are present on the server.