On Sun, 25 Sep 2005 at 5:56pm, Kai wrote
> CentOS 4.1 X86_64
>
> I am trying to collect all my music files and extract them into a new
> directory flat, (without the hierarchy)
>
> The command works find without the pipe, but do not work with.
>
> 1.Why don't the command work after the pipe?
> 2.How do I remove the hierarchy before extracting?
>
> $ tar -cvf music.tar `find ../ -name '*.mp3' -o -name '*.ogg'` | tar -xvf
> music.tar
Pipes direct the next command to read from stdin, but the '-f' flag to
'tar c' send its output to the named file, not stdout. A better form of
the above command would be:
tar cvO `find ../ -name '*.mp3' -o -name '*.ogg'` | tar xf -
The 'O' in the first tar sends its output to stdout, and the 'f -' in the
2nd tells tar to read from stdin.
*However*, that will keep the directory structure. Why not just use cp?
find ../ -name '*.mp3' -o -name '*.ogg' -print0 | xargs -0 -i cp \{} .
--
Joshua Baker-LePain
Department of Biomedical Engineering
Duke University