lsof -Pni :80

[download]
will also do the trick. Of course substituting your port number for 80.

Ted
--
"That which we persist in doing becomes easier, not that the task itself has become easier, but that our ability to perform it has improved."
  --Ralph Waldo Emerson

In reply to Re^2: How to find out whether socket is still connected? by tcf03
in thread How to find out whether socket is still connected? by crenz

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