Now, it would also be good to have your "config.txt" file, but I'm going to try to answer your question anyway.

You have two print statements in your code, the second is conditional, if it contains an IP address you parse it and print it, but the first print is not conditional, you print $arr[0] on every iteration of the loop. If you want to print it only when you find an IP address, put this in the if statement too.

Take my advice. I don't use it anyway.
-- greengaroo

In reply to Re: need to remove the extra line in regular expression by greengaroo
in thread need to remove the extra line in regular expression by ulaksh

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