upsshutdown(8) BSD System Manager's Manual upsshutdown(8)
NAME
upsshutdown -- UPS emergency low power shutdown script
DESCRIPTION
upsshutdown is a script that runs automatically when the system performs
an emergency UPS low power shutdown. The script is run before
shutdown(8) is invoked. upsshutdown only runs if one of the three shut-
down rules is enabled and true: "percentage remaining," "time remaining,"
or "time since loss of power." These settings can be changed using
pmset(1) or Energy Saver in System Preferences.
The system administrator may modify upsshutdown. The script should only
contain commands that must run in the case of an emergency UPS shutdown.
It should not contain any commands that would otherwise be executed dur-
ing a normal shutdown since the normal shutdown procedure follows invoca-
tion of upsshutdown.
LOCATION
/usr/libexec/upsshutdown
SEE ALSO
pmset(1), ioupsd(8)
Darwin October 25, 2005 Darwin
Mac OS X 10.6 - Generated Thu Sep 17 20:26:29 CDT 2009