Create a script to mount a directory

/etc/init.d/app-mount-nfs:
--------------------------
#! /bin/sh
#
# skeleton      example file to build /etc/init.d/ scripts.
#               This file should be used to construct scripts for /etc/init.d.
#
#               Written by Miquel van Smoorenburg <miquels@cistron.nl>.
#               Modified for Debian
#               by Ian Murdock <imurdock@gnu.ai.mit.edu>.
#               Further changes by Javier Fernandez-Sanguino <jfs@debian.org>
#
# Version:      @(#)skeleton  1.9  26-Feb-2001  miquels@cistron.nl
#
### BEGIN INIT INFO
# Provides:          app shared directory
# Required-Start:    $network
# Required-Stop:     $network
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Mount/umount app shared folder.
# Description:       Mount/umount app shared folder.
### END INIT INFO

NAME="app-mount-nfs"
REMOTE="192.168.1.191"
REMOTE_DIR="/srv/share/app"
LOCAL_DIR="/home/dceresuela/code/app/app/static/data"

case "$1" in
    start)
        mount -t nfs -o rw,nosuid ${REMOTE}:${REMOTE_DIR} ${LOCAL_DIR}
        ;;
    stop)
        umount ${LOCAL_DIR}
        ;;
    restart)
        umount ${LOCAL_DIR}
        mount -t nfs -o rw,nosuid ${REMOTE}:${REMOTE_DIR} ${LOCAL_DIR}
        ;;
    *)
        echo "Usage: $NAME {start|stop|restart}"
        exit 1
        ;;
esac
exit 0
_$: chown root:root /etc/init.d/app-mount-nfs
_$: chmod 0755      /etc/init.d/app-mount-nfs
_$: update-rc.d app-mount-nfs defaults 99 00
_$: service app-mount-nfs start

To delete the script:

_$: update-rc.d -f app-mount-nfs remove
_$: rm /etc/init.d/app-mount-nfs