How to keep owner on destination file
Janning Vygen
vygen at planwerk6.de
Fri Oct 27 14:29:26 GMT 2006
Am Donnerstag, 26. Oktober 2006 17:36 schrieb Wayne Davison:
> On Thu, Oct 26, 2006 at 12:14:11PM +0200, Janning Vygen wrote:
> > I run rsync as root to get the permission to overwrite those files:
> >
> > # rsync bar/ foo/
>
> You'd need to use --inplace to avoid changing the current owner. This
> has the downside that the file is briefly in-transition between the old
> state and the new state (unlike the normal transfer, where the new takes
> the place of the old instantly), but programs like "cp" update files in
> this manner, so it usually doesn't cause a problem.
Thanks a lot for this hint. It should be mentioned in the manpage, where
scenarios for --inplace are discribed and should be mentioned with the
option --owner, too. like this:
If you do not set --owner neither --inplace the owner of the destination
file becomes the user running rsync.
What i don't understand: why it only preserves ownership on destination files
if --inplace is given? Without --inplace and without --owner i would expect
rsync to do something like
scp bar/test.txt foo/test.txt.id
chown --reference=foo/test.txt foo/test.txt.id
mv foo/test.txt.id foo/test.txt
IMHO you can achieve atomic file replacement and preserving ownership on
destination file.
but --inplace works perfectly for my purpose.
kind regards
Janning
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