How to exit a shell procedure on an entered line?

Question

linux

A script is launched that displays information on the screen every n seconds, you need to organize an exit (end of the script) if a word is entered, for example quit, 2 times.
Those. quitting should be done by typing "quit quit".
How to do it?

Answer 1

ctrl+c doesn't work?

Answer 2

Read about the shell's built-in read command and the optionally built-in test command.