I wrote a script that analyzes some logs written by another program, that currently I cannot modify. Now I must find a means to know wether a certain log is still being written. I cannot rely on semantics, i.e. checking completeness/well-formedness because the problem I'm actually dealing with has to do with "incomplete" logs.

Now I know that the fuser utility can identify if a file is in use, so I wonder if I can imitate that functionality in perl (I don't want to run fuser itself from within my script, if possible). I tried to check the documentation for fcntl and Fcntl but I'm not even sure if that is the right direction...

Any suggestion?


In reply to How to detect if file is in use? by blazar

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