Simple script to calculate the average of a series of numbers

average

#!/bin/bash
# Calculate the average of a series of numbers

n=0
while read number; do
	echo $number	
	numbers+=$number"+"
	n=$((n+1))
done
numbers+="0"
echo "========="
echo " Average "
echo "========="
echo "scale=2; ($numbers)/$n" | bc