proj(1) on Linux
The text 94cc0d0006db, as Debian 11 (Bullseye) shipped it.
Cartographic projection filter
Flags it lists
-
-E -
-I -
-S -
-V -
-b -
-d -
-e -
-f -
-i -
-lP -
-le -
-lp -
-lu -
-m -
-o -
-r -
-s -
-v