My original post is at: https://troubleshoot-coltpython.blogspot.com/2013/11/measuring-raspberrypi-cpu-and-gpu.html

We’ll create a bash script:

sudo nano temp.sh

Paste this and save:

#!/bin/bash cpuTemp0=$(cat /sys/class/thermal/thermal_zone0/temp) cpuTemp1=$(($cpuTemp0/1000)) cpuTemp2=$(($cpuTemp0/100)) cpuTempM=$(($cpuTemp2 % $cpuTemp1)) cpuFreq=`cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq | sed 's/.\{3\}$//'`Mhz echo CPU temp"="$cpuTemp1"."$cpuTempM"'C" echo GPU $(/opt/vc/bin/vcgencmd measure_temp) echo CPU frequency=$cpuFreq

Set permission and run it:

sudo chmod +x temp.sh;./temp.sh