bird(8) on Linux
The text 4c1fb6ebe6d5, as Debian 12 (Bookworm) shipped it.
BIRD Internet Routing Daemon birdc - BIRD Internet Routing Daemon remote control bird6 - BIRD Internet Routing Daemon, IPv6 version birdc6 - BIRD Internet Routing Daemon remote control, IPv6 version
Flags it lists
-
-D -
-c -
-d -
-p -
-r -
-s -
-v