In this example ( by refixed coder ), we will CALCULATE ADDITION, SUBTRACTION, MULTIPLICATION, AND DIVISION IN UNIX

[ refixed coder ]

Shell script for Arithmetic Operation


Code:

first_num=0

second_num=0

input_fun(){

    echo -n "Enter first number: "

    read first_num

    echo -n "Enter second number: "

    read second_num

}



checker=1

while [ $checker ]

do

    echo "------------------------------"

    echo "ARITHMETIC OPERATION"

    echo "1. Addition"

    echo "2. Subtraction"

    echo "3. Multiplication"

    echo "4. Division"

    echo "5. To exit OPERATION"

    echo "------------------------------"

    echo -n "CHOOSE YOUR OPERATION: "

    read choice

    result=0

 

    if [[ $choice -eq 1 ]]

    then

        input_fun

        result=`echo $first_num + $second_num | bc`

        echo "Result : " $result

    elif [[ $choice -eq 2 ]]

    then

        input_fun

        result=`echo $first_num - $second_num | bc`

        echo "Result : " $result

    elif [[ $choice -eq 3 ]]

    then

        input_fun

        result=`echo $first_num \* $second_num | bc`

        echo "Result : " $result

    elif [[ $choice -eq 4 ]]

    then

        input_fun

        result=`echo $first_num / $second_num | bc`

        echo "Result : " $result

    elif [[ $choice -eq 5 ]]

    then

        exit 1

    else

        echo "Wrong Input"

        echo "Choose another Input"

    fi

done



OUTPUT IMAGE:





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