otpclient(1) on Linux
The text 69037b7639b6, as Debian 12 (Bookworm), Debian 11 (Bullseye) shipped it.
Simple GTK+ software to generate OTPs (TOTP and HOTP)
Flags it lists
-
--display -
--help -
--help-all -
--help-gapplication -
--help-gtk -
-h