From: Eric Blake <eblake@redhat.com>
To: "Jeff Cody" <jcody@redhat.com>,
"Benoît Canet" <benoit.canet@irqsave.net>
Cc: kwolf@redhat.com, qemu-devel@nongnu.org, stefanha@redhat.com
Subject: Re: [Qemu-devel] [PATCH 1/4] block: qemu-iotests - add common.qemu, for bash-controlled qemu tests
Date: Wed, 19 Mar 2014 08:32:36 -0600 [thread overview]
Message-ID: <5329AA84.8010209@redhat.com> (raw)
In-Reply-To: <5329A977.5030801@redhat.com>
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On 03/19/2014 08:28 AM, Eric Blake wrote:
> $ dash -c 'set 1 2 3; echo ${@: -1}'
> dash: 1: Bad substitution
>
> If you want the last argument, you'll have to do something hideous like:
>
> eval \${$#}
>
> Short of using eval, there is no portable way to get at the last
> positional argument in dash.
If you are sure you don't need the other positional arguments, you could
avoid eval with:
shift $(($# - 1)); echo $1
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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next prev parent reply other threads:[~2014-03-19 14:32 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-18 1:24 [Qemu-devel] [PATCH 0/4] Add common QEMU control functionality to qemu-iotests Jeff Cody
2014-03-18 1:24 ` [Qemu-devel] [PATCH 1/4] block: qemu-iotests - add common.qemu, for bash-controlled qemu tests Jeff Cody
2014-03-19 13:39 ` Benoît Canet
2014-03-19 14:19 ` Jeff Cody
2014-03-19 14:28 ` Eric Blake
2014-03-19 14:32 ` Eric Blake [this message]
2014-03-19 14:45 ` Jeff Cody
2014-03-19 14:53 ` Eric Blake
2014-04-10 2:03 ` Fam Zheng
2014-03-18 1:24 ` [Qemu-devel] [PATCH 2/4] block: qemu-iotests - update 085 to use common.qemu Jeff Cody
2014-03-19 13:44 ` Benoît Canet
2014-03-18 1:24 ` [Qemu-devel] [PATCH 3/4] block: qemu-iotests - fix image cleanup when using spaced pathnames Jeff Cody
2014-03-19 13:46 ` Benoît Canet
2014-03-18 1:24 ` [Qemu-devel] [PATCH 4/4] block: qemu-iotests: make test 019 and 086 work with " Jeff Cody
2014-03-19 13:47 ` Benoît Canet
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