whiptail(1) on Linux
The text 45c7e5be21c0, as Debian 9 (Stretch) shipped it.
display dialog boxes from shell scripts
Flags it lists
-
--clear -
--defaultno -
--fb -
--fullbuttons -
--help -
--nocancel -
--noitem -
--notags -
--scrolltext -
--separate-output -
--topleft -
--version -
-h -
-v