fasthalt(8) on FreeBSD
The text 6b5239ced5ea, as FreeBSD 4.2-RELEASE, FreeBSD 4.1.1-RELEASE, FreeBSD 4.1-RELEASE, FreeBSD 4.0-RELEASE shipped it.
stopping and restarting the system
Flags it lists
-
-d -
-n -
-p -
-q