Using the dialog command you can launch ASCII-art dialogs from your shell scripts.
Check out
man dialog
Show archive.org snapshot
for a list of supported dialog types. Aside from simple text boxes or choice dialogs, it supports more advanced interactions like file pickers or progress bars.
Example: Yes/no choice
dialog --yesno "Erase the world?" 0 0
Example: Menu with multiple options
dialog --menu "What's your favorite color?" 0 0 0 R Red G Green Y Yellow B Blue
Example: Date picker
dialog --calendar "Select a date" 0 0
Posted by Henning Koch to makandra dev (2017-03-03 08:19)