APM(8)                  OpenBSD System Manager's Manual                 APM(8)

NAME
     apm - Advanced Power Management control program

SYNOPSIS
     zzz [-S] [-z] [-f sockname]
     apm [-z] [-S] [-s] [-l] [-m] [-b] [-a] [-v] [-f sockname]

DESCRIPTION
     apm communicates with the Advanced Power Management daemon, apmd(8), mak-
     ing requests of it for current power status or to place the system into a
     suspend or stand-by state.  With no flags, apm displays the current power
     management state in verbose form.

     The options are as follows:

     -z      Put the system into suspend (deep sleep) mode.

     -S      Put the system into stand-by (light sleep) mode.

     -l      Display the estimated battery lifetime (in percent).

     -m      Display the estimated battery lifetime (in minutes).

     -b      Display the battery status.  0 means high, 1 means low, 2 means
             critical, 3 means charging, 4 means absent, and 255 means un-
             known.

     -a      Display the external charger (A/C status).  0 means disconnected,
             1 means connected, 2 means backup power source, and 255 means un-
             known.

     -v      Request more verbose description of the displayed states.

     -f sockname
             Set the name of the socket via which to contact apmd(8) to
             sockname.

     The zzz variant on this command is an alternative for suspending the sys-
     tem.  With no arguments, zzz places the system into suspend mode.  The
     command line flags serve the same purpose as for the apm variant of this
     command.

     This command does not wait for positive confirmation that the requested
     mode has been entered; to do so would mean the command does not return
     until the system resumes from its sleep state.

FILES
     /var/run/apmdev  default Unix domain socket for communicating with apm(8)

     The -f flag may be used to specify an alternate socket name.  The protec-
     tion modes on this socket govern which users may access the APM func-
     tions.

SEE ALSO
     apm(4), apmd(8)

REFERENCES
     Advanced Power Management (APM) BIOS Interface Specification (revision
     1.1), Intel Corporation and Microsoft Corporation

HISTORY
     The apm command appeared in OpenBSD 1.2.

OpenBSD 2.9                     March 18, 1996                               1
