Here is a short config to show you how to display and monitor CPU temperature on a Linux system running Redhat 7 Linux. First we need to install lm_sensors:
# yum install lm_sensors
Next, use sensors command to display CPU temperature:
$ sensors | grep Core Core 0: +43.0°C (high = +86.0°C, crit = +100.0°C) Core 1: +43.0°C (high = +86.0°C, crit = +100.0°C)
If you prefer to convert Celsius to Fahrenheit simply add -f option:
$ sensors -f | grep Core Core 0: +111.2°F (high = +186.8°F, crit = +212.0°F) Core 1: +111.2°F (high = +186.8°F, crit = +212.0°F)
To monitor continuously CPU temperature combine the above command with watch command. The next example will update sensors output every second:
$ watch -n 1 "sensors -f | grep Core"
To put all together a simple bash script can be created to act upon a preset temperature value. Combine the below script with cron eg.:
*/5 * * * * /path/to/your/script/CPU-temperature-script.sh
and it will check first CPU ( core 0 )temperature every 5 minutes and act when the CPU temperature reaches 80 and more degrees.
#!/bin/bash TEMPERATURE=$(sensors | grep "Core 0" | cut -d + -f 2 | cut -d . -f1) if [ $TEMPERATURE -ge 80 ]; then echo "Do something here" fi