List where perl is looking for its modulesperl -e'print join "\n", @INC' List installed perl modulesperl -MFile::Find=find -MFile::Spec::Functions -Tlwe 'find { wanted => sub { print canonpath $_ if /\.pm\z/ }, no_chdir => 1 }, @INC' Install perl module with cpanperl -MCPAN -e 'install Archive::Tar'