I would like need a suggestion on bash shell : Read a file line by line and do stuff
 

At first, give my best wish for all MOD and admins here. I"m learning bash shell program just for a month, not too much, not too little, but i must admire that i'm very bad at math and algorithm.

I want to do this :
Read the content of a file line by line and at each line, ask me want to read next line or not, if not, press N - end, if yes, press Y - read next line

For example :

I very need suggestion, i know it very easy with somebody else but with me it's not easy to find out.:Pengy:

while read line
do
echo $line
echo "read next line?"
read a
[ "$a" = "N" ] && break
done <filename