Extract file from tar home/
bobgoodwin at wildblue.net
Tue Jun 8 00:00:28 UTC 2010
On 07/06/10 18:27, 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
> 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"
Yes, it works as you describe. This is the time of day when the rest
of the family gets home and there are other demands for my
attention. I will have to pursue this later.
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