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Re: linux copying



on Tue, May 13, 2003 at 04:07:56PM -0400, list.debian-user@natch.dyndns.org (list.debian-user@natch.dyndns.org) wrote:
> 
> |Note that the piped tar trick does you pretty well:
> |
> |    $ tar cvf . | ( cd newpath; tar xvf - )
> |
> |...too, tar is by default verbose and lets you know what's going on.  In
> |the above instance, on *both* the read and write sides of the equation.
> |
> |For synching up two systems, rsync wins over tar.
> |
> 
> as you said, rsync keeps also good info on permissions, 
> pipes, sockets....
> 
> best of all, it permits to "continue" if the first copying has failed.
> (usefull if there is tons of Gigs to copy)
> 
> rsync can be used locally :
> 
> rsync -v -a /boot /target

Note that rsync is nominally less efficient than tar for "copy this
many-years' archive to that thar virgin unplowed disk", as rsync has to
determine that the disk really is virgin (a task for which, under
slightly different circumstances, I might volunteer).  Tar simply copies
the files.

However, for the "copy this many years' archive to that pile of rubble I
updated from here yesterday", rsync wins massively.

Peace.

-- 
Karsten M. Self <kmself@ix.netcom.com>        http://kmself.home.netcom.com/
 What Part of "Gestalt" don't you understand?
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