in reply to sleep(2.5)

Tutorials -> How to RTFM ->
      perldoc -q sleep
      perldoc -f sleep

You'll also want to read the PerlMonks FAQ to figure out how PerlMonks works.

MJD says "you can't just make shit up and expect the computer to know what you mean, retardo!"
I run a Win32 PPM repository for perl 5.6.x and 5.8.x -- I take requests (README).
** The third rule of perl club is a statement of fact: pod is sexy.