How to get temperature/battery data in C/Shell

[idedTea]

Hello,

I'm interested in making a small C/Shell command line utility to display information about computer temperature and battery life.

I am pulling my hair out trying to find example code or information on how to do this online. Can anyone point me in the right direction?

Thanks!

[ofnuts]

The info you need is likely somewhere under /proc. On my computer:

>>>cat /proc/acpi/battery/BAT0/state 
present:                 yes
capacity state:          ok
charging state:          charged
present rate:            0 mA
remaining capacity:      6549 mAh
present voltage:         12376 mV

>>>cat /proc/acpi/thermal_zone/THM0/temperature 
temperature:             46 C

among other things. The full ACPI spec is here but it doesn't tell how this maps to /proc/acpi even if most of it can be guessed. You will also find moderately outdated info in the original sourceforge project.

[alegomaster]

You may find this thread interesting. It has a bash script which displays the battery. I believe some modification is needed, but that is the best thing I could find.

linky

[doobrie]

Hello,

I'm interested in making a small C/Shell command line utility to display information about computer temperature and battery life.

I am pulling my hair out trying to find example code or information on how to do this online. Can anyone point me in the right direction?

Thanks!

Hi,

I've written a small C++ app that gets the battery state and displays it in a window. You may find the code interesting and it should be fairly easy to understand. You can get it from:

https://github.com/doobrie/battery-status/