form(1) on Linux
The text 769ea964735d, as Debian 9 (Stretch) shipped it.
Symbolic manipulation system
Flags it lists
-
-D -
-F -
-I -
-L -
-M -
-R -
-S -
-T -
-c -
-d -
-f -
-h -
-l -
-ll -
-p -
-pipe -
-q -
-s -
-si -
-t -
-v -
-w -
-y