check service & start

http://www.akamaras.com/linux/linux-script-to-check-if-a-service-is-running-and-start-it-if-its-stopped/

#!/bin/bash
service=replace_me_with_a_valid_service

if (( $(ps -ef | grep -v grep | grep $service | wc -l) > 0 ))
then
echo "$service is running!!!"
else
/etc/init.d/$service start
fi