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 (http://www.acpi.info/) 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 You will also find moderately outdated info in the original sourceforge project (http://acpi.sourceforge.net/documentation/).

[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 (https://bbs.archlinux.org/viewtopic.php?id=1809)

[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/