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Path: utzoo!watmath!clyde!burl!ulysses!allegra!jpl
From: jpl@allegra.UUCP (John P. Linderman)
Newsgroups: net.bugs.4bsd,net.bugs.usg,net.unix-wizards
Subject: Re: find(1) mishandles multiple -newer options - fix included
Message-ID: <5280@allegra.UUCP>
Date: Mon, 21-Oct-85 15:25:55 EDT
Article-I.D.: allegra.5280
Posted: Mon Oct 21 15:25:55 1985
Date-Received: Tue, 22-Oct-85 06:19:55 EDT
References: <5275@allegra.UUCP> <5279@allegra.UUCP>
Organization: AT&T Bell Laboratories, Murray Hill
Lines: 21
Keywords: respect, lack thereof, prophet, own country
Xref: watmath net.bugs.4bsd:1820 net.bugs.usg:368 net.unix-wizards:15360

> From: mp@allegra.UUCP (Mark Plotnick)
>> From jpl@allegra.UUCP (John P. Linderman)
>> The following diffs to the BSD 4.2 source correct the problem,
>> and add a dozen options.  (Only a few options are genuinely
>> useful, but it was cleaner to add them all than to prune out
>> the useless ones.)
> Look out, world!  I was just showing Linderman a bug in "ls" this morning...

Hoist with my own petard, eh?  The changes only add two new
``concepts'', the use of access times or inode change times instead of
file modification times.  Then the two files, the backwards-compatible
defaults, and simple combinatorics generate a dozen possibilities.
Those ending with one or more m's are ``useless'' in the sense that the
same effect can be obtained by leaving the m's off, but they are
``useful'' because they provide a consistent mapping to the underlying
concepts.  By this reckoning, adding the n+1'st flag to ls adds 2**n
new options, so a dozen is pretty modest.  But now that you mention it,
it would be nice to have a flag to ls that caused all unprintable
characters in file names to ...

John P. Linderman  Finder of lost options  allegra!jpl