How to take command line argument and use it to run an upgrade script.

I'm a perl newby. I'm looking on taking a command line argument from STDIN and use it for input to a script that upgrades software. Any examples would be greatly appreciated. Thanks = Jeffrey T. Collins [EMAIL PROTECTED] __ Do you Yahoo!? Yahoo! SiteBuilder -

Perl Newbie question: How would you take keyboard input and run a shell scrip with that input?

For example: I would like for the user to enter the name of a software package to use and then call a shell script to use that package name to upgrade software. Thanks = Jeffrey T. Collins [EMAIL PROTECTED] __ Do you Yahoo!? Find out what made the Top Yahoo