Re: Why does not rgrep use "grep -r"?

[Andreas Schwab]

Miles Bader <address@hidden> writes:

> I don't know the reason of the rgrep authors (though I suspect it was
> portability concerns), but I have noticed something odd about "grep -r":
> -- sometimes it seems _much_ slower than "find ... -type f | xargs grep"
> on very large trees (I think I noticed with trees in NFS, where speed is
> a perennial issue).

Probably because find has been optimized for, umm, finding files.  There
are quite a few things you can do to speed up directory traversal.

Andreas.

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Andreas Schwab, SuSE Labs, address@hidden
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