in reply to Re: Perl cheat sheetin thread Perl cheat sheet
Possibly not what you're thinking of, but The Perl Reference Guide by Johan Vromans is available for download. It has also evolved into The Perl Pocket Reference from O'Reilly.
That document has a somehwat more ambitious scope than Juerd's effort though.
Makeshifts last the longest.
Unixish Shell Scripting languages
Other (post in comments)
Results (381 votes). Check out past polls.