Get CPU, GPU and HDD temperatures

linux raspberry pi get system temperature .md

Create a new file called temps in a folder that is included in PATH (example nano .local/bin/temps)

#!/bin/bash
# Purpose: Display the ARM CPU and GPU  temperature of Raspberry Pi 2/3
# Author: Vivek Gite <www.cyberciti.biz> under GPL v2.x+
# source: https://www.cyberciti.biz/faq/linux-find-out-raspberry-pi-gpu-and-arm-cpu-temperature-command/
# modified by: Andrei Telteu https://gist.github.com/AndreiTelteu/11dae86616b48578a8e8649802414aaa
# -------------------------------------------------------
cpu=$(</sys/class/thermal/thermal_zone0/temp)
hdd=/dev/sda    # lsblk -d to see all
echo "$(date +'%Y-%m-%d %T') @ $(hostname)"
echo "-------------------------------------------"
echo "CPU => $((cpu/1000))° C"
echo "GPU => $(/opt/vc/bin/vcgencmd measure_temp | egrep -o '[0-9]*\.' | egrep -o '[0-9]*')° C"

# method 1 for hdd temp; must have installed hddtemp; install with sudo apt-get install hddtemp
echo "HDD => $(sudo hddtemp sata:$hdd | egrep -o '\: [0-9]*' | egrep -o '[0-9]*')° C"

# method 2 for hdd temp; must have installed smartmontools; install with sudo apt-get install smartmontools
#echo "HDD => $(sudo smartctl -d sat -A -T permissive $hdd | grep Temperature_Celsius | egrep -o '[0-9]* \(' | egrep -o '[0-9]*')° C"

Give the file permission to execute: chmod +x .local/bin/temps

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To change the HDD you want to monitor, first run lsblk -d to see your available devices, then change the hdd variable.

If HDD temperature does not work, try method to by commenting the first echo HDD and uncommenting the second one.

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Credits to Vivek Gite @ cyberciti.biz for the initial script

If you want this script to auto-update, create another script called temps-monit in the same folder (example nano .local/bin/temps-monit)

#!/bin/bash
while true; do clear && temps ; sleep ${1-1}; done

Give execute permission: chmod +x .local/bin/temps-monit

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Use it with temps-monit. It will update at 1 second interval.

To change that pass the interval in seconds as the second parameter: temps-monit 2 for 2 seconds, temps-monit 0.5 for half a second.