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
> 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
>
>
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.
Thanks all.
Bob
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