DragonFly On-Line Manual Pages
SYSPOWER(1) DragonFly General Commands Manual SYSPOWER(1)
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
SEE ALSO
acpi(1)
HISTORY
The syspower utility was written by Peter Pentchev in 2010.
AUTHORS
Peter Penchev <roam@ringlet.net>
DragonFly 6.5-DEVELOPMENT December 26, 2010 DragonFly 6.5-DEVELOPMENT