ON_AC_POWER(1)

NAME
on_ac_power - test whether the computer is running on line power

SYNOPSIS
on_ac_power

DESCRIPTION
The command succeeds (status 0) if the system is using line power and fails (status other than 0) otherwise. It is designed to be easy to use in shell scripts.

OPTIONS
None.

EXIT STATUS
0 (true)    System is on line power
1 (false)   System is not on line power
255 (false) Power status could not be determined

FILES
/proc/apm         APM status information file
/proc/acpi        ACPI status information directory

AUTHOR
This manual page was written by Steve Dodd <steved@loth.demon.co.uk> and was updated by Thomas Hood.