Re: Extract file from tar home/

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On Mon, 2010-06-07 at 17:57 -0430, Patrick O'Callaghan wrote: 
> On Mon, 2010-06-07 at 15:08 -0700, jack craig wrote:
> > it only makes sense, zip deflated the individual files and tar is 
> > ignorance of that requirement.
> > hence the untar, then unzip.
> 
> [Please don't top-post on this list. See the Guidelines.]
> 
> There is nothing in the OP's message to indicate how the tar file was
> created. The usual way is similar to:
> 
> tar cf - dir | gzip > dir.tar.gz (or dir.tgz, it's irrelevant).
> 
> (Note gzip, not zip). The advantage of doing it this way is that it will
> almost always give a smaller final file, as the compression phase can
> utilize redundancy over the whole tar file and not one component at a
> time.
> 
> If this is in fact what the OP did, then the current version of tar can
> read it directly without an intermediate gunzip stage. In fact it can
> detect the compression automatically without the need for a specific
> command option. Thus:
> 
> tar tvf bobg.tar.gz
>         will list all the files, and
> tar xvf bobg.tar.gz foo
>         will extract file "foo"
> 
> poc
> 

Whether the above will work depends on how it was tarred. You man have
to say:
tar xvzf bobg.tar.gz ./bobg/foo or maybe foo is not at the top of the
directory.

tar tvzf bobg.tar.gz will tell you that. Also you left out the z option
that you need to unzip.

--
=======================================================================
A language that doesn't affect the way you think about programming is
not worth knowing.
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Aaron Konstam telephone: (210) 656-0355 e-mail: akonstam@xxxxxxxxxxxxx

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