Simple example of init script. This is a script starting JsTestDriver Daemon

jstestdriver

#!/bin/bash

NAME=JsTestDriver
USER=ikeda
DESC="JsTestDriber daemon"
JAVA=/usr/bin/java
PORT=4224
PATH=/usr/local/share/${NAME}
PIDFILE=${PATH}/${NAME}.pid

check_process()
{
    if [ -e $PIDFILE ]
    then
        kill -0 `/bin/cat $PIDFILE`
    else
        return 1
    fi
}

start()
{
    check_process
    if [ 0 -eq $? ]
    then
        echo " already running."
    else
        (/usr/bin/setsid /sbin/start-stop-daemon --start --oknodo -m --pidfile $PIDFILE --chuid $USER --user $USER --name $NAME --quiet --exec $JAVA -- -jar ${PATH}/${NAME}.jar --port $PORT) &
        echo "$NAME."
    fi
}

stop()
{
    check_process
    if [ 0 -eq $? ]
    then
        /sbin/start-stop-daemon --stop --user $USER --pidfile $PIDFILE --retry 5
        /bin/rm -f $PIDFILE
    else
        echo "$NAME is not running."
    fi
}

case "$1" in
status)
    ;;
start)
    start
    ;;
stop)
    stop
    ;;
restart)
    stop
    start
    ;;
*)
    exit 1
esac