This assignment will introduce you to BASH scripting and the process of creating customized scripts and functions using BASH and external UNIX commands.

You will create and submit a standalone bash script ( #!/bin/bash )that will act as a calculator in shell when run without using the built-in bc utility. Submit the text script for your code (.sh file) for your code here before the due date.

Requirements:

--(60 pts) Structure.

1. (10 pts) The script will have instructions for each step for user (example: "Enter first number") and your code must be commented!

(20 pts) The calculator must take at least 2 numbers as input, as well as a selectable option for each math function, and pass all the options for correct calculation.

(20 pts) The calculator should be usable repeatedly until user wishes to exit - (I recommend a loop or repeat function)

--(40pts) Calculator can correctly calculate the following functions with the minimum 2 inputted numbers and handle any logic errors like (divide by zero) gracefully.The user must be able to select which function to run.

((10pts) Add,

(10pts) Subtract

(10pts) Multiply

(10pts) Divide