====== Email notification of reboot ======
This can / should be setup using nagios, but here it is anyway!  

  * Include this in cron.daily.  
  * Change the email address before enabling.

<code bash>
#!/bin/sh -e
#
HOST=`hostname`
if [ -f /var/run/reboot-required ]; then
    #echo "Sytem will reboot in 5 minutes ..." | /usr/bin/wall
    #sleep 240
    #echo "Sytem will reboot in 1 minute ..." | /usr/bin/wall
    #sleep 60
    cat /var/run/reboot-required | mailx -s "Reboot required on $HOST" system@example.com
    #/sbin/reboot
fi
</code>