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Subject:	=?UTF-8?Q?Re:_tar_incremental_backups_and_ctime=e2=80=8f_problem?=
To:	cygwin AT cygwin DOT com
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From:	Marco Atzeri <marco DOT atzeri AT gmail DOT com>
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Date:	Mon, 23 May 2016 11:06:36 +0200
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On 23/05/2016 10:54, x y wrote:
> Hi Marco,
>
> Thanks for your reply. The problem is that there are a lot of files to
> be checked so replacing ctime by time to support tar incremental
> backup should be more practical.

Bottom post on this mailing list, please.

It is not clear to me your expectation:
- are you asking how to use ctime to select the file with tar alone ?
   It is not possible for my understanding of the manual.

- Are you asking the package maintainer to change the behaviour of
   cygwin tar ? Unlikely to happen, but I leave to him.

Regards
Marco


>
> On Mon, May 23, 2016 at 11:46 AM, Marco Atzeri <marco DOT atzeri AT gmail DOT com> wrote:
>> On 23/05/2016 10:40, x y wrote:
>>>
>>> Hello,
>>>
>>> The MS Office applications are changing the ctime value of .doc and
>>> .xls files even if they are not modified. Opening and closing an
>>> office file without modifying the content is changing ctime and the
>>> unmodified document is included in the incremental tar archive. Could
>>> it be possible to use the mtime value instead of ctime to avoid the
>>> the reappearance of the unchanged files in the incremental archive?
>>>
>>> Test OS  : Windows 7 Sp1
>>>
>>
>>
>> find -ctime should be able you to build the list of files
>> that are changed and that tar should process
>>
>> Regards
>> Marco
>>


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