From owner-freebsd-questions  Sun Nov 10  7:37:39 2002
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Date: Sun, 10 Nov 2002 16:37:26 +0100
From: Martin Heinen <martin@sumuk.de>
To: Neil Doody <neil@mpfreescene.com>
Cc: freebsd-questions@FreeBSD.ORG
Subject: Re: make pid files
Message-ID: <20021110163726.B14403@sumuk.de>
References: <000001c288c9$56c091a0$0200a8c0@b1>
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In-Reply-To: <000001c288c9$56c091a0$0200a8c0@b1>; from neil@mpfreescene.com on Sun, Nov 10, 2002 at 02:56:13PM -0000
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On Sun, Nov 10, 2002 at 02:56:13PM -0000, Neil Doody wrote:
> Is there a way to create pid files for applications you start, if the
> application doesn't have a configuration option within itself to create
> one ?
> 
> Im guessing using some kind of regex with grep to capture the pid/error
> number when you run it ?

If you are running background commands you can use $!:

| #!/bin/sh
| job &
| echo "$!" > /var/run/job.pid

If the job puts itself into the background you need to grep
the PID:

| #!/bin/sh
| job
| ps auxw | awk '/[j]ob/ { print $2 }' > /var/run/job.pid

Be sure to supply a pattern which matches one process only.

-- 
Marxpitn

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