Identifying Common Script Errors -Exercise

In this exercise, make as few changes as possible to fix the script below. Do not rewrite the code; just fix the problems with the existing code. This script is called summation and it adds up all the numbers up to and including the number your user enters. For example, if the user enters 3, the script adds up 1 + 2 + 3. If the user enters 4, it adds up 1 + 2 + 3 + 4. #! /bin/sh total = 0 echo How many numbers do you want to add up? (or q to quit) \c"

read $num 
while ["$num" < one "q" ) 
total=`expr $total + $num num=`$num + 1` 
done 
echo "The total is $total"