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Date: Thu, 13 Jan 2011 01:51:39 +0900
From: Ryuichiro Hara <rhml@kibug.org>
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To: Frank Bonnet <f.bonnet@esiee.fr>
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Cc: freebsd-questions@freebsd.org
Subject: Re: problem with shell script
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(2011/01/12 23:01), Frank Bonnet wrote:
> 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 !
>
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hello.

i would rather use pgrep(1);
pgrep -afl slapd

for just counting purpose,
pgrep -a slapd | wc -l
is enough. it should work as expected in `` output.