ud(1) on Linux
The text b7e2fce5e818, as Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it. The page shows this text now.
The uptime daemon
Flags it lists
-
--help -
--version -
-d -
-if -
-in -
-o -
-of -
-p -
-r -
-s -
-w