opendkim-genkey(8) on Linux
The text 7f1a0fdebdfd, as Debian 8 (Jessie) shipped it.
DKIM filter key generation tool
Flags it lists
-
--help -
-D -
-S -
-V -
-a -
-b -
-d -
-h -
-n -
-r -
-s -
-t -
-v