NAME

syspower —

display the remaining battery charge from the /sys interface

SYNOPSIS

syspower

DESCRIPTION

The syspower utility parses the data in the Linux ACPI /sys/class/power_supply tree and displays the remaining charge of the battery both in the raw format read from the files and as a percentage of the full charge.

Now, why in the world I would need to write this when I seem to have had the acpi(1) tool right under my nose the whole time, is a question left for better men than me to judge :)

RETURN VALUES

The syspower utility exits 0 on success, and >0 if an error occurs.

ENVIRONMENT

The syspower utility's operation is currently not directly affected by its environment.

FILES

The syspower utility examines the /sys/class/power_supply/BAT* directories and looks for the charge_now and charge_full files in each of them.

EXAMPLES

Display the current status of all the batteries that ACPI knows about:

syspower

HISTORY

The syspower utility was written by Peter Pentchev in 2010.

AUTHORS

Peter Penchev ⟨roam@ringlet.net⟩