From: Kay Sievers <kay.sievers@vrfy.org>
To: linux-hotplug@vger.kernel.org
Subject: Re: differences between "PROGRAM" and "RUN" (RUN+) (version 089)
Date: Mon, 10 Apr 2006 18:01:57 +0000 [thread overview]
Message-ID: <20060410180157.GA17138@vrfy.org> (raw)
In-Reply-To: <dac45060604100712r69fbe888q3a565aea6f250017@mail.gmail.com>
On Mon, Apr 10, 2006 at 05:12:01PM +0300, Mark Ryden wrote:
> from man udev (of last version,089):
>
> PROGRAM
> Call external program. This key is valid if the program returns
> successful. The environment variables of udev are also available
> to the program.The string returned by the program may be
> additionally matched with the RESULT key in the same or
> any later rule.
>
> RUN
> Add a program to the list of programs to be executed for
> a specific device.
>
> Can anyone please elaborate a little on the differences between "PROGRAM" and
> "RUN" (RUN+) ?
>
> Are the environment variables of udev available when
> using "run"?
> When must we use RUN (RUN+) and when must we use PROGRAM ?
> Are there cases when using RUN or PROGRAN is both OK?
PROGRAM runs before the device node is created and usually used to return a
string to name a node. RUN is a list of programs to be executed after all
node processing. While PROGRAM is executed not all variables are
available.
Kay
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prev parent reply other threads:[~2006-04-10 18:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-10 14:12 differences between "PROGRAM" and "RUN" (RUN+) (version 089) Mark Ryden
2006-04-10 18:01 ` Kay Sievers [this message]
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