or download this
$ perl -v
This is perl 5, version 22, subversion 1 (v5.22.1) built for x86_64-li
+nux-gnu-thread-multi
...
Complete documentation for Perl, including FAQ lists, should be found
+on
this system using "man perl" or "perldoc perl". If you have access to
+ the
Internet, point your browser at http://www.perl.org/, the Perl Home Pa
+ge.