Originally posted by: SystemAdmin

Guys,

I am trying to create a script to automatically restart an application server process if it goes down. The problem that I am having that the script attempts a restart even if the process is running. I think the issue is on this line: if $? -eq 0 but I cannot figure it out.

See script details below (I am also attaching the script):

#!/bin/bash

1. Restart UAT External Services if stopped

#<hr />

1. This script was created by .....

#<hr />
#
RESTART="/apps/WebSphere/AppServer/profiles/fcatfcib2/bin/startServer.sh Member2
"

1. find Member2 pid

ps -ef | grep Member2

if $? -eq 0
then
# restart UAT External
$RESTART
fi
echo $output
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Originally posted by: jnordtome

If I understand correctly, you want to restart the application if it isn't running. You have the right idea, it's just that grep returns 0 if it finds something. I think you want your if statement to be "$? -ne 0". Meaning that if the process isn't running, restart it. BTW, don't forget to also exclude "grep" itself in your grep statement i.e. "ps -ef |grep -v grep |grep Member2". Your ps will sometimes pickup the grep process and ruin the whole check.
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Originally posted by: SystemAdmin

That seemed to resolve the problem - I am able to now run the script as I wanted it to run.

Thanks for the tip.

Chrome...
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Originally posted by: SystemAdmin

A neat way to grep out the grep line is to square-bracket one of the characters you're searching for, thus:

ps -ef | grep w[h]atever
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