[Zope] Stopping zope??

Hi... I'm going for the "simplest/dumbest" question of the year award: How do I stop zope? I just set it up on Red Hat Linux...and after running "./start &" the server is up and running. I've now added CMF and would like to shut it down/restart. Can't do it. I've tried from the ZMI control panel (error message)...and from the linux prompt (I'm new to linux, but I tried: "./stop" (and every conceivable variation) and get a "./stop: kill: (24799) no such pid" message). What am I doing wrong? George PS - I'm also running zope on win 2000 - no prob - init file does the trick.