shutdown(8) on macOS
The text fb23db102217, as macOS 15.3, macOS 15.2, macOS 15.1, macOS 15.0, macOS 14.6, macOS 14.5, macOS 14.4 shipped it.
close down the system at a given time
Flags it lists
-
- -
-h -
-k -
-n -
-o -
-p -
-r -
-s