perl -v

This is perl 5, version 18, subversion 2 (v5.18.2) built for MSWin32-x64-multi-thread
(with 1 registered patch, see perl -V for more detail)

Copyright 1987-2013, Larry Wall

Binary build 1802 [298023] provided by ActiveState http://www.ActiveState.com
Built Apr 15 2014 10:38:37