w(1) on OpenBSD
The text af3a9b75a181, as OpenBSD 5.0, OpenBSD 4.9, OpenBSD 4.8, OpenBSD 4.7, OpenBSD 4.6, OpenBSD 4.5, OpenBSD 4.4, OpenBSD 4.3, OpenBSD 4.2 shipped it.
display users who are logged on and what they are doing
Flags it lists
-
-M -
-N -
-a -
-h -
-i