Bash Script – Prompt to Confirm (Y/N, YES/NO)

Question – How to add [Y/n] confirmation in our own shell scripts?

Many times you have seen commands ask for confirmation [Y/n] or [Yes/No] input. This is a very useful part to know if a user wants to proceed with remaining steps for not. You can also add the same function to your script. This article will help you with examples of (Bash Script – Prompt to Confirm (Y/N, YES/NO)) this type of inputs.

#1. Bash (Yes/No) Prompt

This example code will prompt for confirming once if you give wrong input, the program will exit with status 1. The below example code will accept only Y or N or YES or NO (Not case-sensitive).

#2 Prompt for Confirmation (in Loop)

This is another example code will prompt for confirmation until you give proper input like (Y, N, YES or NO). If you give wrong input, it will again prompt for correct input and repeat the same steps. This example will accept only Y or N or YES or NO (Not case-sensitive).