pgmer6809 has asked for the wisdom of the Perl Monks concerning the following question:
I run a flavor of Ubuntu (Mint). I have several perl modules that I installed 'manually' with CPAN (I don't know which ones). I am about to upgrade to the next LTS and need to know which Perl modules I will need to re-install, and which ones come with Perl and that I should not re-install for fear of breaking the new perl config.
Is there a way of telling which Perl modules are 'extra' and which are 'default'?
Does -MCPAN have a directory path that it uses by default?