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curl as a tail -f

From: Brian J. Murrell <>
Date: Tue, 28 Apr 2009 20:34:34 -0400

Let's say I have a URL which points to a file on an HTTP server that is
constantly being appended to.

Could [lib]curl not efficiently poll (at a prescribed interval) that URL
looking for newly appended content using whatever mechanism is behind
the -C option? If nothing new was added it should be GET with no
content but if something new was added, the effective -C option would
only get the new content which would be sent to stdout (or a file for

Is there something about HTTP that I'm missing that would make this not


Received on 2009-04-29