I assume you've installed apache using the command "sudo apt-get install apache2".
Next thing you got to install is this library module that links your webserver with the perl engine.
sudo apt-get install libapache2-mod-perl2Now you're ready to go. You must use this in your browser :
The CGI file programname.cgi is present in directory /usr/lib/cgi-bin/.
It is convenient to have a symbolic link to the cgi-bin directory from your /var/www/ directory. You can create one using the following command.
ln -s /usr/lib/cgi-bin/Make sure the program has all the required permission.