On 9/23/19 1:24 PM, Robert Elz wrote:
>     Date:        Mon, 23 Sep 2019 10:59:43 -0400
>     From:        Greg Wooledge <wool...@eeg.ccf.org>
>     Message-ID:  <20190923145943.gx28...@eeg.ccf.org>
> 
>   | But... there literally *is* a real standard for this.
> 
> Hmm, yes, you're right.   That suggests that -depth must be a System-V
> invention (POSIX wouldn't have added a spec for an undocumented internal
> operator from BSD...)

It's in SVR2 (1984?), at least, and POSIX-1003.2d11 (1991) has it, without
any mention of where it came from, so I assume POSIX picked it up from the
SVID. The SVR2 page implies that it was added to support cpio.

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    c...@case.edu    http://tiswww.cwru.edu/~chet/

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