Ignoring for a moment that some logfiles can remain open for several days without seeing a new entry -- what's the point in making a copy? Just do -s $file or (stat($file))[7] at t0 and t1..tn and save some disk space. It won't tell you if the file is open, but it will tell you if it's changing while you're looking at it.

In reply to Re^2: How to detect if file is in use? by gloryhack
in thread How to detect if file is in use? by blazar

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