scp: Problem when source and destination are identical

Gert Doering gert at greenie.muc.de
Fri May 25 23:02:08 EST 2001


Hi,

On Fri, May 25, 2001 at 12:13:42PM +0200, Markus Friedl wrote:
> > Which is why everyone else agreed that a switch to change between "overwrite
> > in place" and "do atomic replace" is a good idea.
> 
> no, this is why "do atomic replace" does not work.
> 
> "overwrite in place" works fine, even if the use cannot create a new
> file because of the directory permissions.
> 
> "overwrite in place" works fine, even if the filesystem is almost full.
> 
> image copying a 100MB file with "do atomic replace" if you have 50MB of
> free space.

You don't seem to be reading what others write.

There are situations where "atomic replace" doesn't work - and there are
other situations where "overwrite in place" messes up applications trying
to read the file in just that moment.

The Unix way is "give 'em a choice" - which is exactly what the switch 
is good for.

gert


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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert.doering at physik.tu-muenchen.de



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