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/