rsync & rcp
Martin Pool
mbp at samba.org
Fri Oct 31 09:06:12 EST 2003
On 30 Oct 2003, aslan at io.com wrote:
>
> I was hoping that since you guys are the authors to rsync that
> you could answer a simple question for me.
>
> I'm trying to transfer files via the rsh/rexec protocol by
> remotely executing a cat command, i.e. "cat > foo.txt"
> and then sending data through the socket to the stdin of the remote
> process. This all works fine, except for the fact that I have to
> close the socket to force and end of file.
>
> My question is, does rcp/rsync close a socket when it sends files
> to signify and end of file? If not, how does it send multiple files
> without closing the socket?
It uses a binary protocol to delimit files and describe metadata such
as their name and ownership. As you say you cannot use the
end-of-file mark more than once. It is conceptually similar to a tar
file.
So if you wanted to send multiple files with just rsh, you could do
tar c mydir | ssh somehost tar x
rsync at lists.samba.org is a better forum for questions.
--
Martin
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