Didn't you ask a lot of similar questions a couple of weeks ago, usually stating that it hand to be "done in Unix"?

If not, please accept my apologies and disregard the following.

If you are that person, just what part of the previous replies (on the order of 'read the doc, do some work yourself, stop asking the same questions over and over again' did you *not* understand?

--Bob Niederman, http://bob-n.com