You've seen a few predefined variables, like $_ . Well, a lot more exist. Pretty much every punctuation character has been pressed into service. The perlvar documentation will be of help here. Also, see the English module in perlmod .
$_
English
[ Library Home | Perl in a Nutshell | Learning Perl | Learning Perl on Win32 | Programming Perl | Advanced Perl Programming | Perl Cookbook ]