From: "Iñaki Baz Castillo" <ibc@...>
Date: 2009-12-27T01:53:42+09:00
Subject: How to know if a process is zombie?

Hi, after some forks I need to know if a process still is alive or not, but in 
case it's alive I also need to know if it's a zombie process (it died without 
Process.wait or Process.detach).

Unfortunatelly I couln't find how to know it using Process module:
  http://ruby-doc.org/core/classes/Process.html
  http://ruby-doc.org/core/classes/Process/Status.html

Is there any other way to determine if a given PID is zombie?
Thanks.

-- 
Iñaki Baz Castillo <ibc@aliax.net>