Question

UNIX QUESTION

Write an argument-less shell script "Sum4.csh", which reads four
integer values from the keyboard, computes their sum, then
displays the sum in expression format.

EXAMPLE: % Sum4.csh
Enter the first number: 4
Enter the second number: 7
Enter the third number: 3
Enter the fourth number: 11
RESULT: 4 + 7 + 3 + 11 = 25

Answer 1

Source Code:

#!/bin/csh

read -p "Enter the first number:" num1
read -p "Enter the second number:" num2
read -p "Enter the third number:" num3
read -p "Enter the fourth number:" num4

sum=$(($num1 +$num2 +$num3 +$num4))

echo "RESULT: $num1 +$num2 +$num3 +$num4 =$sum"

Sample input and output: