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Re: bash 4.2, parameter expansion problem
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From: |
Eric Blake |
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Subject: |
Re: bash 4.2, parameter expansion problem |
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Date: |
Mon, 14 Feb 2011 11:02:47 -0700 |
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On 02/14/2011 10:51 AM, Juergen Daubert wrote:
> Hello,
>
> I stumbled over the following while trying to build xterm from sources
> with bash 4.2:
>
> $:~> /bin/sh --version | head -n1
> GNU bash, version 4.2.0(1)-release (i686-pc-linux-gnu)
> $:~> /bin/sh
> sh-4.2$ a="${b:-'/foo/bar'}"
> sh: bad substitution: no closing `}' in ${b:-'/foo/bar'}
> sh-4.2$ a="${b:-'bar'}"
> sh-4.2$ a="${b:-/foo/bar}"
> sh-4.2$
>
> looks like bash, when called as sh, doesn't like the / character in
> single-quoted strings.
Looks like a bug in how bash was modified for trying to obey this new
POSIX rule:
http://austingroupbugs.net/view.php?id=221
--
Eric Blake eblake@redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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