if I want to print the line number of a file I did this:

while(<>){
print "$.\n"
}

[download]

it works fine. However, if I try to use "map":

map{print "$.\n"}<>;

it can only print the last(or total) line number.

Does anyone know why this happens? How should I (or Can I)use "map" or "grep" to get or the line number of a file using "$."?

Thanks.

In reply to Different behaviors between "while" and "map" by lightoverhead

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