mkfontdir(1) on Linux
The text c635580fe411, as Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it.
create an index of X font files in a directory
Flags it lists
-
-- -
-e -
-n -
-p -
-r -
-x