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Date: Wed, 2 Nov 2011 15:40:03 -0500
From: Dan Nelson <dnelson@allantgroup.com>
To: Mark Saad <nonesuch@longcount.org>
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Cc: freebsd-hackers@freebsd.org
Subject: Re: What is going on with ash / sh
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In the last episode (Nov 02), Mark Saad said:
> Hackers
>  What is going on here, if I run the following shell script, what is
> the expected output . The script is named xxx
> 
> #!/bin/sh
> ps -ax | grep -v grep | grep xxx
> 
> Here is what I see
> 
>  # sh xxx
> 88318  p0  S+     0:00.00 sh xxx
> 88320  p0  R+     0:00.00 sh xxx
> 88321  p0  R+     0:00.00 sh xxx
> 
> Can someone explain this ?

What does your script do?  If it contains subshells or pipelines, the main
process will fork child processes to handle those.

-- 
	Dan Nelson
	dnelson@allantgroup.com