So?
So just write it.
...oh, you hoped we would write it for you?
Wrong!
So, perhaps you should use Search (entering "extract a line" in the "Search" box above produces useful results) or Super_Search for the answers to this oft-repeated question. And if that doesn't avail, you should definitely show a bit of effort (i.e. show us some code).
See, please How do I post a question effectively?, On asking for help and, not just incidentally, Writeup Formatting Tips.
Welcome to the Monastery. Reading the tips above will warm that welcome.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
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See Writeup Formatting Tips and other pages linked from there for more info.