auto-shutdown on higher temprature for raspberrypi - kill kodi & fbi along - copied from raspberrypi forum

auto-shutdown.sh

#!/bin/sh
#  This script reads the Broadcom SoC temperature value and shuts down if it
#  exceeds a particular value.
#  80ºC is the maximum allowed for a Raspberry Pi.

# Get the reading from the sensor and strip the non-number parts
SENSOR="`/opt/vc/bin/vcgencmd measure_temp | cut -d "=" -f2 | cut -d "'" -f1`"
# -gt only deals with whole numbers, so round it.
TEMP="`/usr/bin/printf "%.0f\n" ${SENSOR}`"
# How hot will we allow the SoC to get?
MAX="60"

if [ "${TEMP}" -gt "${MAX}" ] ; then
 # This will be mailed to root if called from cron
 echo "${TEMP}ºC is too hot!"
 # Send a message to syslog
 /usr/bin/logger "Shutting down due to SoC temp ${TEMP}."
 # Halt the box
 pkill fbi
 pkill kodi
 sudo /sbin/shutdown -h now
 echo "Initiating shutdown..."
 else
  exit 0
fi

crontab.sh

# run everyminute, paranoid after I smoked pi2 intially with the same photo frame experiment
*/1 * * * * ~/autoshutdown.sh

Here is updated.

#!/bin/sh
#
#  @link https://forums.raspberrypi.com/viewtopic.php?t=56911 Original source code.
#  This script reads the Broadcom SoC temperature value and shuts down if it
#  exceeds a particular value.
#  80ºC is the maximum allowed for a Raspberry Pi.

# Get the reading from the sensor and strip the non-number parts
SENSOR="`/usr/bin/vcgencmd measure_temp | cut -d "=" -f2 | cut -d "'" -f1`"
# -gt only deals with whole numbers, so round it.
TEMP="`/usr/bin/printf "%.0f\n" ${SENSOR}`"
# How hot will we allow the SoC to get?
MAX="60"

if [ "${TEMP}" -gt "${MAX}" ] ; then
 # This will be mailed to root if called from cron
 echo "${TEMP}ºC is too hot!"
 # Send a message to syslog
 /usr/bin/logger "Shutting down due to SoC temp ${TEMP}."
 # Halt the box
 sudo /sbin/shutdown -h now
else
  # echo "Temperature is ${TEMP}." # for testing only.
  exit 0
fi

Changes:

• Fix /opt/vc/bin/vcgencmd is not found. ( https://forums.raspberrypi.com/viewtopic.php?t=164985#p1064312 as reference. )

Additional usage:

For anyone who is not familiar with Linux, Debian (like I am).

• To make script be able to run, use command sudo chmod +x auto-shutdown.sh on the location where this file is. ( https://www.linuxjournal.com/content/how-create-shell-script-linux as reference. )
• To manually run script, use command sudo auto-shutdown.sh.
• To view log from this script, use command sudo tail /var/log/syslog. ( https://www.linuxfoundation.org/blog/blog/classic-sysadmin-viewing-linux-logs-from-the-command-line as reference. )
• To add to crontab, run this command sudo crontab -e and follow instruction. Use sudo crontab because this file need sudo (root level) to run.
• To views all crontab tasks, run this command sudo crontab -l.
• To remove a single crontab job, read this.