bash-2.05$ perl -e 'use ExtUtils::Installed; $inst = ExtUtils::Installed->new(); print join "\n", $inst->modules();'
DBI
DBIx::XML_RDB
Parse::Yapp
Perl
XML-DOM
XML::Catalog
XML::Checker
XML::Clean
XML::DT
XML::Dumper
XML::Edifact
XML::Generator
XML::Grove
XML::Handler::YAWriter
XML::Node
XML::Parser
XML::QL
XML::RSS
XML::RegExp
XML::Registry
XML::Simple
XML::Twig
XML::Writer
XML::XPath
XML::XQL
libxml-enno
libxml-perlbash-2.05$