Use tar to append?

[Mike McCarty]

Cameron Simpson wrote:
> 
> Maybe:
> 
>   tar Af tarfile more-files...

First one needs tar cf...
Apparently tar Af does not work unless the tar file already
exists.

> Seems like it should do the trick. It should be efficient if the tarfile is
> not compressed. But I'm saying this on the basis of the info file for
> GNU tar, and I'm presuming that "A" is more efficient than "r", though
> the info file is... vague... about this (to be charitable).

Yes, indeed.

Well, I tried it, and it's taking longer and l.o.n.g.e.r and
l..o..n..g..e..r for each new diretory. It just timed /usr/src
and it took over 2 minutes to back up 48 kilobytes. It's copying
and copying or seeking and seeking or sth.

Mike
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