If you wanted to continue using your free Unix account, then doing something like what moritz suggested would probably be the best route to go.

If you wanted to go a different route, here's a few suggestions about alternatives to using your free Unix account.

• Perl isn't available only on *nix operating systems. You could try Perl on your home computer that has internet access.
• I'm guessing that your home system is not running some kind of *nix OS and that you're wanting to learn Perl in an *nix environment. One alternative would be to use some kind of hypervisor (such as VirtualBox, which happens to be 100% free) and run a *nix based virtual machine on your home system. Then you would have your own *nix system to test with.