On Wednesday 29 December 2010 18:41:00 Alex Schuster wrote: > Peter Humphrey writes: > > On Wednesday 29 December 2010 17:50:08 Alex Schuster wrote: > > > What Maciej said. Or, for greater security when the destination is > > > outside the LAN: > > > > > > cd [source] & tar xpf - . | ssh [us...@[host] 'cd [dest] && tar xpf > > > -' > > > > That's what I was looking for - a single command I can run on the source > > machine. Thanks Alex. > > > > Just one more thing - what if I only want to store the tar of the source > > directory as an archive on the remote machine? In that case I'd want to > > stream the incoming data into a file instead of untarring it. > > Replace the tar by cat, and redirect into a file: > > cd [source] & tar xpf - . | ssh [us...@[host] 'cat > [dest]/[name].tar'
The front part should be tar -cpf not -xpf? Also, option -S manages sparse files more efficiently. Finally, if it is a large archive and is going to travel over a slow network it would make sense to compress it first locally into a tar file (e.g. using - j) then verify it (if it is important data that you rely on just add -W) and finally ssh the compressed tar file over. If you are going to use pipes, then dd will also work instead of cat; i.e. cd [source] & tar cpvSf - . | ssh [us...@[host] "dd of=/backup_storage/mydata.tar.bz2" I don't think that dd is any different to cat in performance terms (but haven't tested it). -- Regards, Mick
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