w(1) on FreeBSD
The text 8fad9ca54212, as FreeBSD 3.5.1-RELEASE, FreeBSD 3.5-RELEASE, FreeBSD 3.4-RELEASE shipped it.
display who is logged in and what they are doing
Flags it lists
-
-M -
-N -
-d -
-h -
-i -
-n