linux check if a service is running
I was working on a Zabbix server that kept failing for some reason. I decided to not get frustrated over it and write a small bash script to restart the service:
#!/bin/bash
#List services to check for
SERVICES="zabbix_server"
#What is the server hostname
HOST="My Host"
# check if each service is running
for service in $SERVICES
do
# if current service is running, dont do anything.
if ps ax | grep -v grep | grep $SERVICES > /dev/null
then
echo "$service service is running!"
else # otherwise, turn it on
echo "$SERVICES is not running"
sudo /etc/init.d/$SERVICES start
if ps ax | grep -v grep | grep $SERVICES > /dev/null
then
echo "$HOST $SERVICES is now running."
echo "$HOST $SERVICEs is now running!" | mail -s "$HOST $SERVICES running" root
else
echo "$HOST Unable to start $SERVICES."
echo "$HOST $SERVICES is not running!" | mail -s "$HOST $SERVICES running" root
fi
fi
done
At least I won’t have to be scared of not realizing the unknown while I troubleshoot the issue!
This works perfect! But make sure that the SERVICE name is not a substring in the name of the script which runs this piece of code.
For eg. If the service you want to check is “xyz”, the script name cannot be “verifyxyz”, “checkxyzdaemon”, etc.
Great man,
That was what I’m looking for. Many thanks!