in the tarpit -- cannot exclude cache

[Mike Kupfer]

Kevin O'Gorman wrote:

> I've done a "touch /home/kevin/.cache/CACHEDIR.TAG" to mark the
> directory I want to exclude, but it's not getting excluded.

http://www.gnu.org/software/tar/manual/html_node/exclude.html suggests
that the CACHEDIR.TAG file needs to have certain contents for it to do
what you want.

    A cache directory tag is a short file with the well-known name
    ‘CACHEDIR.TAG’ and having a standard header specified in
    http://www.brynosaurus.com/cachedir/spec.html.

regards,
mike