A note for myself. This is how to list out what perl modules are installed.Way 1 :perl -MFile::Find=find -MFile::Spec::Functi ons -Tlwe 'find { wanted => sub { print canonpath $_ if /\.pm\z/ }, no_chdir => 1 }, @INC'Way 2 :perldoc perllocal*** these are all taken from “http://perldo c.perl.org/perlmodli b.html”