Something else to look at might be POE, which makes it really easy to write daemon processes, servers and more under an event driven style of coding. We've been looking it over here at my work and it sure beats coding up background servers by hand.
--- echo S 1 [ Y V U | perl -ane 'print reverse map { $_ = chr(ord($_)-1) } @F;' Warning: Any code posted by tuxz0r is untested, unless otherwise stated, and is used at your own risk.