Package dialog

A utility for creating TTY dialog boxes

http://invisible-island.net/dialog/dialog.html

Dialog is a utility that allows you to show dialog boxes (containing
questions or messages) in TTY (text mode) interfaces. Dialog is called
from within a shell script. The following dialog boxes are implemented:
yes/no, menu, input, message, text, info, checklist, radiolist, and
gauge.

Install dialog if you would like to create TTY dialog boxes.

General Commands (Section 1)
dialog
Dialog is a program that will let you present a variety of questions or display messages using dialog boxes from a shell script.