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Re: [Bug-tar] keep newer files bug?
From: |
Helmut Waitzmann |
Subject: |
Re: [Bug-tar] keep newer files bug? |
Date: |
Wed, 25 May 2005 16:18:42 +0200 |
User-agent: |
Gnus/5.1006 (Gnus v5.10.6) Emacs/21.3 (gnu/linux) |
Sergey Poznyakoff <address@hidden> writes:
>To summarize: the three options --keep-newer-files, --overwrite and
>--unlink-first control the behavior of tar when extracting archive
>member over *existing* files. Their effect is as follows:
>
> --keep-newer-files If the file on the filesystem is newer than
> its archive version, preserve the filesystem
> version. Otherwise, unlink it and replace with
> the archive version.
> --overwrite No matter what the file timestamp is, replace
> it with the archive version. Notice, that
> replacing means unlinking old file and
> creating a new one in its stead.
> --unlink-first Same as --overwrite, the only difference being
> that --unlink-first tries to unlink file
> before opening (even if it does not exist),
> while --overwrite unlinks it only after
> opening it returns EEXIST.
What does tar do, if neither of these options is supplied? Same as
'--overwrite'?
Thank you very much for your explanations!
Kind regards,
Helmut
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