Answer to Question #303183 in UNIX/Linux Programming for Sunitha

Question

Write a menu driven shell script which accepts a number N and an option to calculate the average of: 

1. first ‘N’ odd numbers

2. first ‘N’ even numbers.

Answer 1

echo "Enter Size(N)"
read N

i=1
sum=0

echo "Enter Numbers"
while [ $i -le $N ]
do
  read num               #get number
  sum=$((sum + num))     #sum+=num
  i=$((i + 1))
done

avg=$(echo $sum / $N | bc -l)

echo $avg