请教一下，怎么样把GatewayWorker 变成一个linux系统服务?

#!/bin/bash

start()
{
    /path/to/your/php  /path/to/your/start_worker.php start -d
    exit 0;
}

stop()
{
    /path/to/your/php  /path/to/your/start_worker.php stop
    exit 0;
}

restart()
{
    /path/to/your/php  /path/to/your/start_worker.php restart -d
    exit 0;
}

case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    restart)
        restart
        ;;
    *)
    echo "usage: $0 start|stop|restart"
    exit 0;
esac
exit $?