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Date:      Fri, 24 Jan 2003 09:57:12 -0800
From:      Tim Kientzle <kientzle@acm.org>
To:        Murat Bicer <murat@bicer.org>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: Changes in /bin/sh between 4.6.2 and 4.7
Message-ID:  <3E317E78.1060504@acm.org>
References:  <20030124154322.C525A1FA3A@www.fastmail.fm>

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Murat Bicer wrote:

>   killall freevrrpd > /dev/null 2>&1 & && echo -n 'freevrrpd'


The construction 'a & && b' has always been
complete nonsense and the shell no longer accepts it.
(The '&&' means "check the output of the
preceding command", which isn't possible
with 'a &' being run in the background.)

If you mean to wait until 'killall' finishes,
use just '&&'.  If not, use just '&'.

Tim Kientzle


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