#!/bin/bash
 
serviceno () { printf "\n$service is not running cannot continue...\n\n"; }
serviceyes () { printf "\n$service is allready running cannot continue...\n\n"; }
 
servicedead  () { status=$(systemctl is-active $service); if [[ "$status" != "active" ]]; then serviceno ; exit; fi; }
servicealive () { status=$(systemctl is-active $service); if [[ "$status" == "active" ]]; then serviceyes ; exit; fi; }
 
# service="mysql" ; servicedead  # Uncomment to check if service is not running and if not die.
# service="mysql" ; servicealive # Uncomment to check if service is running and if so die.