If you are getting a 500 Internal Server Error while trying to run a Perl script on a site that uses cPanel, here are some common solutions to the problem:

1. You have to add a line in the .htaccess file to use Perl, Python, or CGI scripts. Add this at the end of your .htaccess file (how?):Addhandler cgi-script .py .pl .cgi
2. Make sure your script has the permissions 0755. (how?)