Getopt::Long, but simpler and more powerfulhttp://search.cpan.org/dist/Getopt-Long-Descriptive/
Getopt::Long::Descriptive is yet another Getopt library. It's built atop
Getopt::Long, and gets a lot of its features, but tries to avoid making you
think about its huge array of options.
It also provides usage (help) messages, data validation, and a few other