apphbd(8) on Linux
The text 0357e0184a0b, as Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.
Application Heartbeat Monitor for High-Availability Linux
Flags it lists
-
-d -
-h -
-k -
-r -
-s