nginx_init_script.sh

#!/bin/bash

### BEGIN INIT INFO
# Provides:          nginx
# Required-Start:    $all
# Required-Stop:     $all
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: starts the nginx web server
# Description:       starts nginx using start-stop-daemon
### END INIT INFO

# An init.d script that works under Ubuntu 12.04 FFS
# load with sudo /usr/sbin/update-rc.d -f nginx defaults

# CHANGE ME.
PATH=/opt/nginx/sbin:$PATH
DAEMON=/opt/nginx/sbin/nginx
NAME=nginx
DESC=nginx

test -x $DAEMON || exit 0
# Include nginx defaults if available
if [ -f /etc/default/nginx ] ; then
        . /etc/default/nginx
fi

set -e

function start {
  echo -n "Starting $DESC: "
  start-stop-daemon --make --start --pidfile /var/run/$NAME.pid --exec $DAEMON -- $DAEMON_OPTS
  echo "$NAME."
}

function stop {
  echo -n "Stopping $DESC: "
  $DAEMON -s stop
  rm -f /var/run/$NAME.pid
  echo "$NAME."
}
function status {
  echo -n "Checking $DESC: "
  if [ -f /var/run/$NAME.pid ]; then
    PID=`cat /var/run/$NAME.pid`
    if [ -z "`ps axf | grep ${PID} | grep -v grep`" ]; then
         printf "%s\n" "Process dead but pidfile exists"
    else
        echo "Running"
    fi
   else
       printf "%s\n" "Service not running"
   fi
 echo "$NAME."
}

case "$1" in
  start)
    start
    ;;
 stop)
    stop
    ;;
  status)
    status
    ;;
  restart)
    stop
    sleep 4
start
    ;;
  *)
    N=/etc/init.d/$NAME
    echo "Usage: $N {start|stop|restart}" >&2
    exit 1
    ;;
esac

exit 0