/etc/init.d/gearman-workers

gearman-workers.sh

#!/bin/bash
#
# /etc/init.d/gearman-workers

### BEGIN INIT INFO
# Provides:          gearman-workers
# Required-Start:    $network $remote_fs $syslog
# Required-Stop:     $network $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start daemon at boot time
# Description:       Run gearman workers
### END INIT INFO

PIDDIR=/var/run/gearman

start()
{
	if ! test -d ${PIDDIR}
	then
	    mkdir ${PIDDIR}
	fi
	
	for file in /home/ubuntu/workers/*.php
	do
		echo "Starting worker: $file"
		PID=`php $file &`
		PIDFILE=${PIDDIR}/${PID}.pid
		echo $PID > $PIDFILE
	done

    echo "Workers started"
    exit 2
}

stop()
{
	echo "Stoping workers $2"
	
	for file in "${PIDDIR}/*.pid"
	do
		PID=`cat $file`
		kill -9 $PID
	done
	
	exit 1
}

case "$1" in
    start)
        start
		;;

    stop)
        stop
        ;;
 
    restart|force-reload)
		start
		stop
        ;; 
    
    *)
        echo "Input [start|stop|restart|force-reload]"
        exit 1
        ;;
esac

a greater way to do this is as described at: http://www.bram.us/2013/11/11/run-a-php-script-as-a-servicedaemon-using-start-stop-daemon/