shutdown(8) on macOS
The text 596e92984f17, as macOS 14.3, macOS 14.2, macOS 14.1, macOS 14.0 shipped it.
close down the system at a given time
Flags it lists
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- -
-h -
-k -
-n -
-o -
-p -
-r -
-s -
-u