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To: Hajimu UMEMOTO <ume@freebsd.org>
References: <ygefyt4yiaz.wl%ume@mahoroba.org>
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From: des@des.no (=?iso-8859-1?q?Dag-Erling_Sm=F8rgrav?=)
Date: Mon, 22 Aug 2005 15:04:40 +0200
In-Reply-To: <ygeacjbyj5g.wl%ume@mahoroba.org> (Hajimu UMEMOTO's message of
	"Sun, 21 Aug 2005 14:05:15 +0900")
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Cc: Peter Jeremy <PeterJeremy@optushome.com.au>,
	Robert Watson <rwatson@freebsd.org>, arch@freebsd.org
Subject: Re: [CFR] reflect resolv.conf update to running application
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Hajimu UMEMOTO <ume@freebsd.org> writes:
> +		if diff /etc/resolv.conf.std /etc/resolv.conf >/dev/null 2>&1; then
> +			rm -f /etc/resolv.conf.std
> +			return 0
> +		fi
> +

use 'cmp -s' instead of diff.  It returns 0 when the files are
identical, 1 when they differ and 2 when one of the files does not
exist or is not readable, and never prints anything.

DES
--=20
Dag-Erling Sm=F8rgrav - des@des.no