Creating a calculator script

Question

I am trying to make a calculator with a bash script. The user enters a number, chooses whether they wish to add, subtract, multiply or divide. Then the user enters a second

Answer 1

Wrapping Code in a Loop

If you just want to wrap your code in a Bash looping construct, and are willing to hit CTRL-C to terminate the loop rather than do something more fancy, then you can wrap your code in a while-loop. For example:

while true; do
    : # Your code goes here, inside the loop.
done

Just make sure to move your unconditional exit statement out of the body of the loop. Otherwise, the loop will terminate whenever it reaches that line.