PerlWizard at www.rtbaileyphd.com/perlwizard is a free wizard for automatic Perl software code generation using simple forms. One of its main features is that it uses GetOpt::Long. You could just use that and everything will be handled for you. In any case, you can look at some of the examples at www.rtbaileyphd.com/downloads to see how I employed GetOpt::Long.