http://www.perlmonks.org?node_id=448126


in reply to Analyzing large Perl code base.

There are some non-free tools that can help you. For instance, ActiveState has a full-fledged Perl IDE that will organize the code into modules/packages graphically, and from which you can do a lot of code-analyzing (what is called by what, etc).

There are a few other Perl IDEs online.