Shell Script to Simple Calculator
Linux shell script allows users to create a calculation to perform the calculation as they perform in the calculator. In order to achieve this, we will be using a case statement to perform the calculation as per the user input.
# !/bin/bash # Take user Input echo "Enter Two numbers : " read a read b # Input type of operation echo "Enter Choice :" echo "1. Addition" echo "2. Subtraction" echo "3. Multiplication" echo "4. Division" read ch # Switch Case to perform # calulator operations case $ch in 1)res=`echo $a + $b | bc` ;; 2)res=`echo $a - $b | bc` ;; 3)res=`echo $a \* $b | bc` ;; 4)res=`echo "scale=2; $a / $b" | bc` ;; esac echo "Result : $res"
Here is the sample output of the above script
More we to make a calculator
You can use else if to perform the calculation as per user input.
You can also use the While loop to perform the same operation.