Finding Installed Perl Modules

In working with numerous servers, some my own and many under client ownership, I bump into interesting issues to tackle (yep, this is obvious I know, we all do!). As most of us do now when stumped, a first resort is to Google the problem and see who has already resolved it.

Just a few weeks ago I was wrestling with a web-based Perl application problem for some advanced scripts that I had not authored and became convinced it was related to modules (does anyone else get flustered with obfuscated Perl error messages?!).

I happened to have a snippet of code for identifying all modules installed tucked away and was finally able to track down which module was not installed that resolved the issue.

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Perhaps other will find some value in being able to generate lists of modules installed. A disclaimer on this code – I remember finding it through a Google search sometime back (at least a year ago) – but cannot track back down who posted it and where. So – for insuring proper credit is issued – I did not author this handy little piece.


perl -MFile::Find=find -MFile::Spec::Functions -lwe 'find { wanted => sub { print canonpath $_ if /.pmz/ }, no_chdir => 1 }, @INC'