ud(1) on Linux
The text 42ccfc38d762, as Debian 3.0 (Woody), Debian 2.2 (Potato), Debian 2.1 (Slink) shipped it.
The uptime daemon
Flags it lists
-
--help -
--version -
-d -
-if -
-in -
-o -
-of -
-s -
-w