znol(1) on Linux
The text 97b02825938a, as Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge), Debian 3.0 (Woody) shipped it.
notify via Zephyr upon login or logout of interesting people
Flags it lists
-
-f -
-l -
-q -
-u