#!/usr/bin/perl
use strict;
use ExtUtils::Installed;
my $inst= ExtUtils::Installed->new();
my @modules = $inst->modules();
foreach(@modules)
{
my $ver = $inst->version($_) || "???";
printf("%-12s -- %s\n", $_, $ver);
}
exit ;
http://wiki.perlchina.org/Perl%E6%A8%A1%E5%9D%97%E5%A4%9A%E5%B9%B3%E5%8F%B0%E5%AE%89%E8%A3%85%E6%96%B9%E6%B3%95
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