Bash shell script to check if script itself is running Post: 302725365

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Top Forums Shell Programming and Scripting Bash shell script to check if script itself is running Post 302725365 by hedkandi on Friday 2nd of November 2012 06:32:28 AM

11-02-2012

Registered User

Bash shell script to check if script itself is running

hi guys

we've had nagios spewing false alarm (for the umpteenth time) and finally the customer had enough so they're starting to question nagios. we had the check interval increased from 5 minutes to 2 minutes, but that's just temporary solution. I'm thinking of implementing a script on the affected client servers that monitors the processes, and if its not running it will use Logger to produce a string of sentence that I can easily pick up with nagios monitoring. all i have to do then is just add the "key words" into nagios check configuration which already monitors /var/log/messages

So the script that looks for process to check if its running or not is as such:

Code:

# more /usr/local/bin/process
#!/bin/bash
PROCESS="httpd" 

if /etc/init.d/$PROCESS status | grep running.> /dev/null 
then 
logger -s "$PROCESS is running" 
else 
logger -s "$PROCESS is not running" 
fi

so how do i monitor to see if the script itself is running? I tried with ps -ef but you know ps is still going to show me two lines (one with ps, the other if script is running) so its not really a good way to check, isnt it?

when i put the job in the background with nohup and grep with ps aux I get nothing

Code:

# ps aux | grep /usr/local/bin/process | grep -v /usr/local/bin/process | wc -l
0

Can someone please help me out?

hedkandi

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LEARN ABOUT DEBIAN

icinga

icinga(8)							      nagios								 icinga(8)

NAME

       icinga - network/systems status monitoring daemon

SYNOPSIS

       icinga [-h] [-v] [-s] [-d] <main_config_file>

DESCRIPTION

       icinga is a daemon program that monitors the status of various network accessible systems, devices, and more.  For more information, please
       consult the online documentation available at http://www.icinga.org, or on your Icinga server's web page.

OPTIONS

       main_config_file
	      The main configuration file.  On debian systems this defaults to /etc/icinga/icinga.cfg

       -h     A helpful usage message

       -v     Reads all data in the configuration files and performs a basic verification/sanity check.  Always make sure you verify  your  config
	      data before (re)starting Icinga.

       -s     Shows projected/recommended check scheduling information based on the current data in the configuration files.

       -d     Starts Icinga in daemon mode (instead of as a foreground process).

FILES

       /etc/icinga
	      Default configuration directory for Icinga

AUTHOR

       Icinga  was  started  as  Nagios by Ethan Galstad <nagios@nagios.org>.  Icinga is maintained by the Icinga Project <info@icinga.org>.  This
       manual page was written by sean finney <seanius@debian.org> for the Debian GNU/Linux operating system (but it may be freely used, modified,
       and redistributed by others).

sean finney							    March 2010								 icinga(8)

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