who(1) on macOS
The text 1bc654d4eeef, as macOS 12.5, macOS 12.4, macOS 12.3 shipped it.
display who is logged in
Flags it lists
-
-H -
-T -
-a -
-b -
-d -
-l -
-m -
-p -
-q -
-r -
-s -
-t -
-u