perlgpl (1)          - the GNU General Public License, version 1
Software::License::AGPL_3 (3pm) - GNU Affero General Public License, Version 3
Software::License::GPL_1 (3pm) - GNU General Public License, Version 1
Software::License::GPL_2 (3pm) - GNU General Public License, Version 2
Software::License::GPL_3 (3pm) - GNU General Public License, Version 3
Software::License::LGPL_2_1 (3pm) - GNU Lesser General Public License, Versio...
Software::License::LGPL_3_0 (3pm) - GNU Lesser General Public License, Version 3
Software::License::Perl_5 (3pm) - The Perl 5 License (Artistic 1 & GPL 1)