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From: davidsen@steinmetz.steinmetz.UUCP (William E. Davidsen Jr)
Newsgroups: comp.unix.wizards
Subject: Re: impossible problem for find(1)?
Message-ID: <5900@steinmetz.steinmetz.UUCP>
Date: Wed, 29-Apr-87 12:04:29 EDT
Article-I.D.: steinmet.5900
Posted: Wed Apr 29 12:04:29 1987
Date-Received: Sat, 2-May-87 10:09:42 EDT
References: <2645@phri.UUCP>
Reply-To: davidsen@kbsvax.steinmetz.UUCP (William E. Davidsen Jr)
Organization: General Electric CRD, Schenectady, NY
Lines: 29

In article <2645@phri.UUCP> roy@phri.UUCP (Roy Smith) writes:
>
>	A user posed a problem which I can't solve.  She wants to find all
>the files named *refs which are newer than a file called INDEX in the same
>directory.  Thus she wants to know if any of ./x/foorefs, ./x/barrefs or
>./x/bazrefs is newer than ./x/INDEX, and if ./y/z/refs is newer than
>./y/z/INDEX, etc.  I can't think of how to do this with find, or even any
>combination of find and any other standard tools.  We're running MtXinu
>4.3BSD/NFS on a Vax and Sun-3.1 on some Sun-3's.

After looking at some of the solutions to this, I decided that
my first thought was no more confusing and used something we all
have, the Bourne shell.

 $ find . -type d -print |
 > while read dirname
 > do
 >   find $dirname -name '*refs' -newer $dirname/INDEX -print
 > done

Note that if you don't escape the "*refs" as some of the
suggested solutions have (not) done, and you have a matching
file in the current directory, you will get filename expansion
and the find will fail.
-- 
bill davidsen			sixhub \	ARPA: wedu@ge-crd.arpa
      ihnp4!seismo!rochester!steinmetz ->  crdos1!davidsen
				chinet /
"Stupidity, like virtue, is its own reward"