See other replies for solutions to your sorting problem.

What I wish to respond to is this nonsense:

I don't have access to install any modules that are not already installed on the system, so please don't suggest a module.

You certainly can install any modules you like, "access" or no "access". You just can't make them available to others unless you have some sort of root access.

Read the FAQ answer:

perldoc -q "How do I keep my own module/library directory?"

for details.

--
Regards,
Helgi Briem
helgi AT decode DOT is