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From: David Scheidt <dscheidt@panix.com>
Date: Wed, 12 Jan 2011 10:58:33 -0500
To: User Questions <freebsd-questions@freebsd.org>
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Subject: Re: problem with shell script
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On Jan 12, 2011, at 10:43 AM, Samuel Mart=EDn Moro wrote:

> On W
>>=20
>>>> If I run in the following shell script :
>>>>=20
>>>> #!/bin/sh
>>>> SD=3D0
>>>> SD=3D`ps -ax | grep slapd | grep -v grep | wc -l`
>>>> echo $SD
>>>>=20
>>>> the result is 3 !!!
>>>>=20
>>>=20
>> ps ax | grep "[/]slapd " | wc -l
>>=20
> ps ax | awk '/[/]slapd /{n++} END{print n}'
> sorry...
>=20
>> may not fix the problem
>> but still cleaner


ps ax | grep [s]lapd | wc -l

The [] creates a one-character class that doesn't match the regex.  =
Easier to type and grep should be a bit faster. =20=