Some opencms service management nonsense I had to write for an interview 'aptitude' test.

service_manager_opencms.sh

#!/bin/bash
declare -a OPENCMS_SERVICES=('mysqld' 'tomcat6' 'nginx');

check_health() {
  for service in ${OPENCMS_SERVICES[@]}
  do
    if [ -z "$(ps ax | grep -v grep | grep $service)" ]
       then
        echo "$service is NOT RUNNING..."
        make_service_run $service
       if [ -z "$(ps ax | grep -v grep | grep $service)" ]
          then
          echo "Unable to start $service."
       fi
    else
      echo "$service is running..."
    fi
  done
}

make_service_run() {
  if [ -z "$(ps ax | grep -v grep | grep $service)" ]
   then
     service $1 start
   else
    service $1 restart
  fi
}

make_service_stop() {
  if [ -z "$(ps ax | grep -v grep | grep $service)" ]
   then
     echo "$service isn't running!"
   else
    service $1 stop
  fi
}

restart_all() {
  for service in ${OPENCMS_SERVICES[@]}
  do
    make_service_run $service
  done
}

stop_all() {
  for service in ${OPENCMS_SERVICES[@]}
  do
    make_service_stop $service
  done
}

if [ $# -lt 1 ]
then
        echo "Usage : $0 [action]"
        exit
fi

case "$1" in

stop)  echo "Stopping..."
    stop_all
    ;;
restart)  echo  "Restarting..."
    restart_all
    ;;
start)  echo  "Starting..."
    restart_all
    ;;
health) echo  "Checking service health..."
   check_health
   ;;
*) echo "Unknown action $1"
   ;;
esac