0   0   *   *   0   root /bin/sh somecommandhere

# mkdir /mnt/cdrom
# mkdir /mnt/hd2

#! /bin/sh
#    Starts a listening daemon that captures SMDR information
# Author:  Jim Lucas <jlucas@cmsws.com>
# Version:  0.0.1
set -e
DESC="PBX Tunnel"
PIDFILE=/var/run/tunnel.pid
L_IP=192.168.1.10
L_PORT=8888
R_IP=192.168.0.10
R_PORT=80
#
#  Function that starts the daemon/service.
#
d_start() {
  if [ -f $PIDFILE ]; then
	echo "$DESC already running: PID# `cat $PIDFILE`"
	exit 1
  else
	echo "Starting $DESC"
	nohup /usr/bin/ssh -2 -N -f -L $L_IP:$L_PORT:$R_IP:$R_PORT root@localhost 1>/dev/null
	sleep 0.5
	ps auxww | grep "$L_IP:$L_PORT:$R_IP:$R_PORT" | grep -v grep | awk -F' ' '{print $2}' > $PIDFILE
	echo "$DESC Started #`cat $PIDFILE`"
  fi
}
#
#  Function that stops the daemon/service.
#
d_stop() {
  if [ -f $PIDFILE ]; then
	echo -n "Stopping $DESC"
	kill `cat $PIDFILE`
	rm $PIDFILE
	echo "."
  else
	echo "$DESC is not running"
	exit 1
  fi
}
case "$1" in
  start)
	d_start
  ;;
  stop)
	d_stop
  ;;
  status)
	if [ -f $PIDFILE ]; then
	  echo "$DESC is running: PID# `cat $PIDFILE`"
	else
	  echo "$DESC is not running"
	fi
  ;;
  cleanup)
	PID="`ps auxww | grep "$L_IP:$L_PORT:$R_IP:$R_PORT" | grep -v grep | awk -F' ' '{print $2}'`"
	kill $PID
	rm $PIDFILE
  ;;
  restart|force-reload)
	d_stop
	sleep 0.5
	d_start
  ;;
  *)
	echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload}" >&2
	exit 1
  ;;
esac
exit 0

ssh -2 -N -f -L 192.168.0.10:8888:172.16.0.10:80 root@localhost