dnssec-keyfromlabel(8) on Linux
The text 123fa380763c, as Debian 9 (Stretch) shipped it.
DNSSEC key generation tool
Flags it lists
-
-3 -
-A -
-C -
-D -
-E -
-G -
-I -
-K -
-L -
-P -
-R -
-S -
-V -
-a -
-c -
-f -
-h -
-i -
-k -
-l -
-n -
-p -
-t -
-v -
-y