CpuTemp

Source code snippets in several programming languages for reading the CPU temperature in Linux. Tested on Debian and Raspbian. Refer to this blog article on the PragmaticLinux blog for an in depth explanation on using this code.

Terminal

One liner:

head -n 1 /sys/class/thermal/thermal_zone0/temp | xargs -I{} awk "BEGIN {printf \"%.2f\n\", {}/1000}"

The first line in file /sys/class/thermal/thermal_zone0/temp is read and then piped to awk with the help of xargs. awk converts the CPU temperature to a floating point value in degrees Celsius.

Python

Make sure the script is executable and then you can run it directly:

cd source/python

chmod +x cputemp.py

./cputemp.py

The Python script contains a reusable function get_cpu_temp() that you can copy to your own Python program. Additionally, it contains a test program implemented in function main() to demonstrate how to use the get_cpu_temp() function.

Shell

Make sure the script is executable and then you can run it directly:

cd source/shell

chmod +x cputemp.sh

./cputemp.sh

The shell script contains a reusable function get_cpu_temp() that you can copy to your own shell script. Additionally, it contains a test program to demonstrate how to use the get_cpu_temp() function.

C

Compile the source-file and link it to an executable. Afterwards you can run it directly:

cd source/c

gcc cputemp.c -o cputemp

./cputemp

The C program contains a reusable function get_cpu_temp() that you can copy to your own C program. Additionally, it contains a test program implemented in function main() to demonstrate how to use the get_cpu_temp() function.

Pascal

Compile the source-file and link it to an executable. Afterwards you can run it directly:

cd source/pascal

fpc cputemp.pas -ocputemp

./cputemp

The Pascal program contains a reusable function get_cpu_temp() that you can copy to your own Pascal program. Additionally, it contains a test program to demonstrate how to use the get_cpu_temp() function.