t1testpage(1) on Linux
The text f251c3ad6afd, as Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster) shipped it.
create a PostScript proof for a Type 1 font
Flags it lists
-
--glyph -
--help -
--output -
--smoke -
--version -
-g -
-h -
-o -
-s -
-v