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Reply-To:	moss AT cs DOT umass DOT edu
Subject:	Re: find command seems to lock files
To:	cygwin AT cygwin DOT com
References:	<CA+7cx1rwShfSJYJZdvSF-8ERaAQqcYxtQquKKB8xwoBxqhLVog AT mail DOT gmail DOT com> <20190819140308 DOT GN11632 AT calimero DOT vinschen DOT de>
From:	Eliot Moss <moss AT cs DOT umass DOT edu>
Message-ID:	<609c28ca-07da-f150-139b-267448ede826@cs.umass.edu>
Date:	Mon, 19 Aug 2019 10:06:14 -0400
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On 8/19/2019 10:03 AM, Corinna Vinschen wrote:
> On Aug 19 14:33, Morten Kjærulff wrote:
>> Hi,
>>
>> I have an application which constantly:
>> creates a file
>> do some processing
>> deletes the file
>>
>> One way to monitor if the application has crashed, is to check the age of
>> the file, so I made a script that:
>>
>> find //$server/d$/dir/subdir*/subsubdir -name 'thefile' -printf '%A+\n'
>>
>> subdir* will be subdir1 subdir2 ...
>> under subsubdir there will be dirA, dirB, ... and under those, thefile may
>> exist.
>>
>> Problem is that it seems this command locks thefile, as the application
>> sometimes can't delete it.
>>
>> Could this be true?
> 
> Cygwin does not actually lock anything except in very rare
> circumstances.  Your problem is more likely triggered by a realtime
> virus scanner.

I was wondering, though, whether the parent directory would
be non-delete-able while find has the directory open for scanning.
If the application in question creates and deletes the parent
directory, as well as the leaf file, then things would be left
around unexpectedly.

So would use of find trigger a virus scanner, which in turn might
hold on to the file and prevent its deletion?

Regards - Eliot

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