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Shell script to find greatest of three numbers
Let's write a shell script to find the greatest of three numbers.
Algorithm
1. Get three numbers. Say num1, num2, num2
2. If (num1 > num2) and (num1 > num3)
echo value of num1
3. elif(num2 > num1) and (num2 > num3)
echo value of num2
4. Otherwise,
echo value of num3
Shell script for finding greatest of three numbers
#shell script to find the greatest of three numbers echo "Enter Num1" read num1 echo "Enter Num2" read num2 echo "Enter Num3" read num3 if [ $num1 -gt $num2 ] && [ $num1 -gt $num3 ] then echo $num1 elif [ $num2 -gt $num1 ] && [ $num2 -gt $num3 ] then echo $num2 else echo $num3 fi
read function used to get the input from the user.
-gt stands for greater than.
&& represents the logical AND condition.
Output
Enter Num1
1
Enter Num2
34
Enter Num3
2
34
Enter Num1
500
Enter Num2
5
Enter Num3
6
500
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