Date: Thu, 13 Jan 2011 14:45:04 -0600 (CST) From: Robert Bonomi <bonomi@mail.r-bonomi.com> To: f.bonnet@esiee.fr, freebsd-questions@freebsd.org Subject: Re: problem with shell script Message-ID: <201101132045.p0DKj43V027817@mail.r-bonomi.com> In-Reply-To: <4D2DB449.6070901@esiee.fr>
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> Date: Wed, 12 Jan 2011 15:01:45 +0100 > From: Frank Bonnet <f.bonnet@esiee.fr> > Subject: problem with shell script > > 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 !!! Advice: don't try to 'out-think' the machine -- make it _show_ you what it is doing. Change the script to: SD=`ps -ax | grep slapd | grep -v grep | tee /dev/tty | wc -l` echo $SD I suspect thet the -name- of the script file has 'slapd' in it.
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