What do undocumented -fstype and -prune options to find do?

[Mike Cappella]

In article <1990Nov5.124512.5090 at tsa.co.uk> domo at tsa.co.uk
    (Dominic Dunlop) writes:
>
>Running strings across the A/UX 2.0 find command (the way one does), I
>spot two undocumented options:

>-prune	Apparently taken from  a fairly recent draft of the 1003.2 shell
>  ...
>Would anybody care to elucidate?

Let's say you are trying to remove all SCCS directories within a source tree.
You would use the find command

	% find src -name SCCS -exec /bin/rm -rf {} \; -prune -print

Find will stop at an SCCS directory, execute rm -rf, and then *not* try to
progress into the directory...  Make sense?

-Mike
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