Shell script that asks user to continue with a y/n

Question

I have a shell script that I want to ask the user if they want to continue. If they type 'n' and press enter the script will exit.

If they press 'y' and enter it will continue to run. I have this at the top of my script but it continues regardless of what I type.

What am I doing wrong ?

goon=
while [ -z $goon ]
do
    echo -n 'Do you want to continue? '
    read goon
    if [[ $goon = 'n' ]]
    then
        break
    fi
    goon=
done

Answer 1

Use an infinity loop and case/esac like this:

while true
do
    read -r -p 'Do you want to continue? ' choice
    case "$choice" in
      n|N) break;;
      y|Y) echo 'Do your stuff here';;
      *) echo 'Response not valid';;
    esac
done

Answer 2

The 'break' statement will exit you out of your while loop.

If you want to exit the script you want to use 'exit'.