Shell Script to find sum, product and average of given numbers - The Coding Shala

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Shell Script to find the sum, product, and the average of given numbers

Read four integer numbers from the user and find the sum, product, and average of these four numbers?

Code: 

#!/bin/bash
echo "enter four integers"
read a b c d
sum=$(echo "$a + $b + $c + $d" | bc -l)
average=$(echo "$sum / 4" | bc -l)
product=$(echo "$a * $b * $c * $d" | bc -l)
echo "sum =  $sum"
echo "Average =  $average"
echo "Product = $product"



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