http://www.perlmonks.org?node_id=666953


in reply to Re^2: subroutine is confusing
in thread subroutine is confusing

So? Copy it into a new file, initialize the variables with test values, and run that. No big deal.

BTW you don't need <readmore>-tags around single lines. No readmore needed for post with less than, let's say 30 lines.