Expect is a program that performs programmed dialogue with other
interactive programs.  It is briefly described by its man page, expect(1).

It uses pseudo-tty's to control the child processes, so it is not affected
by programs that refuse to read from stdin or pipes. (eg: passwd(1) etc).

This program is no longer maintained upstream, with a last release in
2018 and the most recent maintainer ticket action in 2020.

Homepage:
https://expect.sourceforge.net/
