note Anonymous Monk Sorry, I'm new to this and I don't have too
much time to read the tutorials, but this I still don't
understand $seen{$_} I know $_ is the current stream. .= is like
adding it at the end. But what is that hash /10$/ ? But this
only matches the exact line length it doesn't look for a the
same word. what if I want to find a word in both files and print
it out on screen? Thanks. 36725 46460 2