From owner-freebsd-questions@FreeBSD.ORG  Wed Jan 12 14:16:59 2011
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 73116106564A
	for <freebsd-questions@freebsd.org>;
	Wed, 12 Jan 2011 14:16:59 +0000 (UTC)
	(envelope-from f.bonnet@esiee.fr)
Received: from hp9.esiee.fr (hp9.esiee.fr [147.215.1.4])
	by mx1.freebsd.org (Postfix) with ESMTP id 396518FC13
	for <freebsd-questions@freebsd.org>;
	Wed, 12 Jan 2011 14:16:58 +0000 (UTC)
Received: from mail.esiee.fr (mail.esiee.fr [147.215.1.3])
	by hp9.esiee.fr (Postfix) with ESMTP id 2E1592DCEE3
	for <freebsd-questions@freebsd.org>;
	Wed, 12 Jan 2011 15:01:46 +0100 (CET)
Received: from mail.esiee.fr (localhost [127.0.0.1])
	by VAMS.dummy (Postfix) with SMTP id 168C0105441F
	for <freebsd-questions@freebsd.org>;
	Wed, 12 Jan 2011 15:01:46 +0100 (CET)
Received: from [147.215.1.21] (lisa.esiee.fr [147.215.1.21])
	by mail.esiee.fr (Postfix) with ESMTP id 02B74105441A
	for <freebsd-questions@freebsd.org>;
	Wed, 12 Jan 2011 15:01:46 +0100 (CET)
Message-ID: <4D2DB449.6070901@esiee.fr>
Date: Wed, 12 Jan 2011 15:01:45 +0100
From: Frank Bonnet <f.bonnet@esiee.fr>
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US;
	rv:1.9.2.13) Gecko/20101207 Lightning/1.0b2 Thunderbird/3.1.7
MIME-Version: 1.0
To: freebsd-questions@freebsd.org
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Subject: problem with shell script
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, 12 Jan 2011 14:16:59 -0000

Hello

I'm in trouble with a simple shell script that give
erroneous value when running ...

If I run commands interactively everything runs well

 > ps ax | grep slapd | grep -v grep | wc -l
       1

If I run in the following shell script :

#!/bin/sh
SD=0
SD=`ps -ax | grep slapd | grep -v grep | wc -l`
echo $SD

the result is 3 !!!


Any info welcome !