Re: [Bug-tar] keep newer files bug?

[Helmut Waitzmann]

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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