Learn Linux Shell Scripting - Fundamentals of Bash 4.4

Dealing with y/n

At the beginning of this chapter, we presented you with something to think about: asking the user to agree or disagree with something by stating yes or no. As we discussed, there are many possible answers we can expect a user to give. Realistically, there are five ways a user could give us a yes: y, Y, yes, YES, and Yes.

The same goes for no. Let's see how we could check this without using any tricks:

reader@ubuntu:~/scripts/chapter_09$ vim yes-no.sh reader@ubuntu:~/scripts/chapter_09$ cat yes-no.sh #!/bin/bash###################################### Author: Sebastiaan Tammer# Version: v1.0.0# Date: 2018-10-01# Description: Dealing with yes/no answers.# Usage: ./yes-no.sh#####################################read -p "Do you ...