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wmacpi - Man Page

Battery status monitor for systems supporting ACPI


wmacpi-cli - Query battery status for systems supporting ACPI


wmacpi [ -c value ] [ -d display ] [ -m battery no ] [ -s sample rate ] [ -f ] [ -v ] [ -n ] [ -x ] [ -a samples ] [ -v ] [ -h ]

wmacpi-cli [ -a samples ] [ -V ] [ -v ] ] -b ] [ -r ] [ -h ]


This manual page documents briefly the wmacpi command.

wmacpi is a program that displays the current battery status in a WindowMaker dock app, on systems that support Intel's Advanced Configuration and Power Interface specification (ACPI).

The program monitors a battery, displaying its current percentage charge via a bar and a numeric value. It also displays the current power status for the system, the time remaining (calculated based on the remaining battery capacity and the current rate of power usage), and a scrolling message with some hopefully useful information.

Clicking on the window cycles through the batteries that the ACPI system knows about.

wmacpi-cli queries the battery status from the command line. It prints the power status, the percentage remaining for each battery found, and the time remaining if the system is on battery, or the time remaining for each battery to reach full charge if the batteries are charging.



-c, --critical=percentage

Set critical low alarm at <percentage>% (default: 10%).

-d, --display=display

Set the X display to open the window on.

-m, --battery=battery number

Set the battery to monitor initially.

-s, --sample-rate=sample rate

Set the rate at which to sample the ACPI data, in number of times per minute. Minimum is 1, ie once a minute, default is 20, maximum is 600.

-n, --no-blink

Disable blinking power glyph when charging. Note that it still blinks when the battery reports its capacity state as critical.

-f, --force-capacity-mode

Force the use of capacity mode for calculating time remaining. By defalt wmacpi will use the reported values of remaining capacity and present rate to calculate the time remaining on battery. This flag will force the use of the remaining capacity and time samples to calculate the present rate of drain, and from there the time remaining. Note that this mode of calculation generally underreports the time remaining. This mode works around certain buggy ACPI BIOSes that fail to report the current rate.

-x, --cmdline

Run wmacpi in command line mode - this operates identically to wmacpi-cli.

-a, --samples=samples

Average the time remaining over num samples. This greatly improves the accuracy of the reported time remaining.

-V, --verbosity=num

Increase the verbosity of the program. Setting this to 1 will print extra error information; 2 will produce informational output; 3 will produce copious debugging output.

-v, --version

Print the version information.

-r, --no-scroll

Disable scrolling message.

-h, --help

Display help.

-a num

Average the time remaining over num samples. This greatly improves the accuracy of the reported time remaining.


Increase the verbosity of the program. If repeated, the result is the same as setting --verbosity for wmacpi to the number of repetitions.


Print the version information.


Display help.


wmacpi was originally written by Tim Copperfield <timecop@japan.co.jp>, then completely rewritten after 1.34 by Simon Fowler <simon@himi.org>.

This manual page was originally written by Simon Richter <sjr@debian.org> for the Debian GNU/Linux system, and then updated by Simon Fowler.
Last modification by Simon Fowler <simon@himi.org>, 2007-07-13.

Referenced By

The man page wmacpi-cli(1) is an alias of wmacpi(1).

July 13 2007