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#! /bin/sh
# /etc/init.d/{THING-TO-LAUNCH}

### BEGIN INIT INFO
# Provides:          {THING-TO-LAUNCH}
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Simple script to start a program at boot
# Description:       Simple, conventional, practical launch script.
### END INIT INFO

# run `sudo update-rc.d {THING-TO-LAUNCH} defaults` to `start` at boot and `stop` at shutdown.

# Carry out specific functions when asked to by the system
case "$1" in
  start)
    echo "Starting {THING-TO-LAUNCH}"
    # run application you want to start
    # runs as root by default, hence the `su`
    su pi -c '/usr/bin/{THING-TO-LAUNCH} new -d' # or whatever
    ;;
  stop)
    echo "Stopping {THING-TO-LAUNCH}"
    # kill application you want to stop
    su pi -c 'killall {THING-TO-LAUNCH}' # or whatever
    ;;
  *)
    echo "Usage: /etc/init.d/{THING-TO-LAUNCH} {start|stop}"
    exit 1
    ;;
esac

exit 0