A few things you might want to know about ksh
Explanation (http://forums.devshed.com/showpost.php?p=811737&postcount=2) from the past, about the `test' in the ksh shell
Hi
2 things:
1. You are missing 'then' after if.
if [ $a -eq 0 ]; then
echo " "
else
2. Are you sure $a is a number since you are using -eq. Because from the grep it looks like it cannot be...