NAME

       on_ac_power - test whether computer is running on AC power

SYNOPSIS

       on_ac_power

DESCRIPTION

       on_ac_power  checks  whether  the  system  is  running  on AC power (i.e., mains power) as
       opposed to battery power.

OPTIONS

       None.

EXIT STATUS

       0 (true)  System is on mains power
       1 (false) System is not on mains 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.

                                           9 March 2002                            ON_AC_POWER(1)