[plug] results in variable

[Jon Miller]

Thanks guys, just what the doctor ordered.

JLM

Jon L. Miller, MCNE, CNS
Director/Sr Systems Consultant
MMT Networks Pty Ltd
http://www.mmtnetworks.com.au

"I don't know the key to success, but the key to failure
 is trying to please everybody." -Bill Cosby



>>> bernard at blackham.com.au 10:19:42 PM 24/08/2003 >>>
On Sun, Aug 24, 2003 at 09:41:23PM +0800, Craig Ringer wrote:
> 'killall -0 postfix' and testing the exit value should work. A signal 
> zero should be ignored by the application - it's just used to see if you 
> /can/ send a signal.

There's also the pidof program. Something like:

pidof qmgr > /dev/null

will just return 0 if it finds a process, and 1 otherwise.

HTH,

Bernard.

-- 
 Bernard Blackham 
 bernard at blackham dot com dot au