Currently this script is developed for my Raspberry Pi (Debian, Raspbian) but in time I will have it working for RHEL (Red Hat, CentOS, Fedora).
service=openvpn running=$(ps -ef | grep -v grep | grep $service | wc -l) #echo $running if [ "$running" = 1 ]; then echo "$service is running!!!"; else echo "Starting $service!!!"; sudo /etc/init.d/$service start fi netstat -uapn | grep openvpn
In the example above I’m checking if OpenVPN is running, if it is not running it will start the service.
I set this script up as CheckOpenVPN.sh in my /opt directory so I can simply run the below.
sudo sh /opt/CheckOpenVPN.sh