From owner-freebsd-hackers  Sun Nov  2 06:43:25 1997
Return-Path: <owner-freebsd-hackers>
Received: (from root@localhost)
          by hub.freebsd.org (8.8.7/8.8.7) id GAA23370
          for hackers-outgoing; Sun, 2 Nov 1997 06:43:25 -0800 (PST)
          (envelope-from owner-freebsd-hackers)
Received: from heron.doc.ic.ac.uk (edDnTYuONr0uWzpbYSegPaAdwUESQPwG@heron.doc.ic.ac.uk [146.169.2.31])
          by hub.freebsd.org (8.8.7/8.8.7) with SMTP id GAA23358
          for <freebsd-hackers@freebsd.org>; Sun, 2 Nov 1997 06:43:01 -0800 (PST)
          (envelope-from njs3@doc.ic.ac.uk)
Received: from oak66.doc.ic.ac.uk [146.169.33.66] ([Xxz/HvRkJOqEtfke2dGm6RPSz+MuRr+1])
	by heron.doc.ic.ac.uk with smtp (Exim 1.62 #3)
	id 0xS1F7-0002EF-00; Sun, 2 Nov 1997 14:43:09 +0000
Received: from njs3 by oak66.doc.ic.ac.uk with local (Exim 1.62 #3)
	id 0xS1Eg-0000MG-00; Sun, 2 Nov 1997 14:42:42 +0000
From: njs3@doc.ic.ac.uk (Niall Smart)
Date: Sun, 2 Nov 1997 14:42:42 +0000
In-Reply-To: Brian Somers <brian@awfulhak.org>
       "Re: Suggested addition to /etc/security" (Nov  2,  1:02am)
X-Mailer: Mail User's Shell (7.2.5 10/14/92)
To: Brian Somers <brian@awfulhak.org>, njs3@doc.ic.ac.uk (Niall Smart)
Subject: Re: Suggested addition to /etc/security
Cc: Brandon Gillespie <brandon@roguetrader.com>, freebsd-hackers@freebsd.org
Message-Id: <E0xS1Eg-0000MG-00@oak66.doc.ic.ac.uk>
Sender: owner-freebsd-hackers@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk

On Nov 2,  1:02am, Brian Somers wrote:
} Subject: Re: Suggested addition to /etc/security
> > On Nov 1, 10:58am, Brandon Gillespie wrote:
> > > > > find / -nouser -nogroup
> > > > Shouldn't this be "find / -nouser -o -nogroup -print"?
> > > Yeah, or even better:
> > > 
> > > files=`find / -nouser -o -nogroup -print`
> > > ls -ldF $files
> > > 
> > > (this looks better than find / -nouser -o -nogroup -exec ls -ldF {} \;)
> > 
> > Looks better?  They should produce identical output. "find / -nouser -o
> > -nogroup -print | xargs -n 30" is more efficient btw :)) however
> > using -exec with find is othe only one that works with filenames with
> > embedded spaces.
> 
> Check the -print0 option on find.  That, and the -0 option to xargs 
> makes it a far better choice than -exec.

Ah, I was aware of this but thought it was a GNUism.

> BTW, why the -n 30 to xargs ?

Well I thought that size of the arguments to ls might exceed ARG_MAX
but a quick read of the xargs man page shows that it deals with this
possibility (the default -s option is ARG_MAX - 2048) so I guess it's
not necessary after all, even if it was necessary that probably wasn't
the best way to deal with it so forget I ever mentioned it ;)

Niall