Open Notepad.exe and paste the following code

@echo off

title Simple Calculator by Techgoon

color 0A

:top

echo --------------------------------------

echo -Welcome to Simple Calculator by Techgoon

echo --------------------------------------
echo Use the Following Operators for calculation
echo * = MULTIPLY
echo + = ADD
echo - = SUBTRACT

echo / = DIVIDE
echo Enter your Equation

echo.
set /p sum=

set /a ans=%sum%

echo.

echo = %ans%

echo --------------------------------------------------------------

pause

cls

echo Previous Answer: %ans%

goto top

pause

exit


Now Click on CTRL + S to save and name it Calc.bat
Now you can Launch your calculator by double clicking on the Calc.bat
You will see your calculator and you can use it to perform simple Calculation

http://www.techgoon.com/make-simple-calculator-using-notepad/

quite educative

@Techgoon, is there any ebook on shell scripting? I need one

sinkhole:
@Techgoon, is there any ebook on shell scripting? I need one

Nope not yet

Techgoon:

Nope not yet

Maybe you then consider writing one