Bash script to verify the daemon is working if not, start the daemon
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A lot of daemons store their process ID in a file in /var/run (ex. sshd.pid for the sshd daemon). You might try looking there. Then if you find it, you can do an 'if [ -x "/proc/<PID>" ]' to see if the process directory exists. Otherwise, just a grep through a "ps -ax" for the daemon name might be enough.
Last edited by nuwen52; 09-22-2009 at 02:15 PM.
Reason: error in previous post
I need to write a bash script to verify some xyz daemon is running are not, if not start that xyz daemon
If "need to write" is not due to some class assignment then unless you're into reinventing the wheel I'd look at something like Monit instead. It'll be faster than interpreted code, more configurable than you can script in one month and it's used, supported, maintained OSS.