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List:       linux-kernel
Subject:    Re: USB script
From:       "Albert D. Cahalan" <acahalan () cs ! uml ! edu>
Date:       1999-04-30 17:35:45
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Dominik Kubla writes:
> On Thu, Apr 29, 1999 at 05:52:50PM -0400, Albert D. Cahalan wrote:
>> Dominik Kubla writes:

>>> UPID=`ps -C uhci-control -o pid --no-headers`
>>
>> That is almost what I initially thought:
>> UPID=`ps -C uhci-control -o pid=`
>> (if all column heads are empty, no header line is printed)
>
> Haven't checked it, but would
>
> UID=`ps -u root -C uhci-control -o pid=`
>
> work?  If -u and -C can not yet be specified together, would it make
> sense to allow it in the a futher version of ps ?

That does not work the way you might want it to work.
As required by standards, you get BOTH root-owned processes
and processes named "uhci-control".

I have indeed thought about adding an option to change the logic.

This is fairly good:

UID=`ps --sort=ruid -C uhci-control -o pid= | head -1`

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