From owner-freebsd-questions@FreeBSD.ORG  Wed Aug 29 16:51:12 2007
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 4717716A41A
	for <freebsd-questions@freebsd.org>;
	Wed, 29 Aug 2007 16:51:12 +0000 (UTC)
	(envelope-from wojtek@wojtek.tensor.gdynia.pl)
Received: from wojtek.tensor.gdynia.pl (wojtek.tensor.gdynia.pl
	[IPv6:2001:4070:101:2::1])
	by mx1.freebsd.org (Postfix) with ESMTP id 046B913C4B4
	for <freebsd-questions@freebsd.org>;
	Wed, 29 Aug 2007 16:51:09 +0000 (UTC)
	(envelope-from wojtek@wojtek.tensor.gdynia.pl)
Received: from wojtek.tensor.gdynia.pl (localhost [IPv6:::1])
	by wojtek.tensor.gdynia.pl (8.13.8/8.13.8) with ESMTP id l7TGp27Y014915;
	Wed, 29 Aug 2007 18:51:03 +0200 (CEST)
	(envelope-from wojtek@wojtek.tensor.gdynia.pl)
Received: from localhost (wojtek@localhost)
	by wojtek.tensor.gdynia.pl (8.13.8/8.13.8/Submit) with ESMTP id
	l7TGp2wO014912; Wed, 29 Aug 2007 18:51:02 +0200 (CEST)
	(envelope-from wojtek@wojtek.tensor.gdynia.pl)
Date: Wed, 29 Aug 2007 18:51:02 +0200 (CEST)
From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: Hinkie <Hinkie@paradise.net.nz>
In-Reply-To: <01a901c7ea3d$0ad62720$1e00a8c0@cheqsoft.local>
Message-ID: <20070829185012.A14865@wojtek.tensor.gdynia.pl>
References: <01a901c7ea3d$0ad62720$1e00a8c0@cheqsoft.local>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
Cc: freebsd-questions@freebsd.org
Subject: Re: FreeBSD Cron Job to run (ifconfig em0 down; ifconfig em0 up)
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 29 Aug 2007 16:51:12 -0000

fragment from my test program (used for other thing but doesn't matter)

/sbin/ping -i 0.5 -s 1450 -c 3 tested_host >/dev/null 2>/dev/null
if [ $? != 0 ];then
  perform_action_if_doesnt_ping
fi