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Date:      Thu, 04 Jan 2001 17:37:46 -0800 (PST)
From:      John Baldwin <jhb@FreeBSD.org>
To:        Steven <steven@trance.org>
Cc:        FreeBSD Questions <freebsd-questions@FreeBSD.org>
Subject:   RE: Killing process
Message-ID:  <XFMail.010104173746.jhb@FreeBSD.org>
In-Reply-To: <NEBBLBKNKLDHDLHHPODBCEMMCKAA.steven@trance.org>

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On 05-Jan-01 Steven wrote:
>> Use the back quotes. Command should be
>> 
>> kill -9 `cat /var/run/inetd.pid`
> 
> you can also just do:
> 
> killall inetd
> 
> or any other process running in place of inetd.

killall should be used with caution IMO.  killall does very different things on
other UNIX and UNIX-like OS's (try using killall as root on Tru64 for a fun
surprise), and it also can kill more than one instance of a daemon, while with
a pid file in /var/run you are killing a specific one.  For example, if you
have multiple dhclient's running with a pidfile that includes the interface name
in the filename, then

kill `cat /var/run/dhclient.cue0.pid`

can provide very different results from

killall dhclient

-- 

John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/
PGP Key: http://www.baldwin.cx/~john/pgpkey.asc
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/


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