What is the idiomatic way to do the following
- tar to stdout
- read this tar output from stdout and extract to some other folder.
My solution is
tar --to-stdout .. | tar -C somefolder -xvf -
But may be there is more idiomatic way to do it.
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Just adding another use-case here. I had a large directory structure on a system nearly out of disk space and wanted to end up with a tar.gz file of the directory structure on another machine with lots of space.
tar -czf - big-dir | ssh user@host 'cat > /path/to/big-dir.tar.gz'
This saves on network overhead and means you don't have to tar on the other side in case you'd wanted to use rsync for the transfer instead.
I don't have enough reputation to post a comment about using netcat.
On the receiving end run:
netcat -l 5555 > /path/to/dest.tar.gz or
netcat -l 5555 | tar -C /path/to/expanded/tar -xz
On the sending side run:
tar -C /path/to/source -cz files | netcat <target IP/hostname> 5555
If you are on a fast network, don't bother compressing and decompressing the tar. Used some variant of this over the years for all kinds of recovery.