From: Harald van Dijk <harald@gigawatt.nl>
To: dash@vger.kernel.org
Cc: Herbert Xu <herbert@gondor.apana.org.au>, jrnieder@gmail.com
Subject: Re: Quoted closing brace in variable default expansion
Date: Sat, 20 Nov 2010 01:42:33 +0059 [thread overview]
Message-ID: <4CE71991.3020108@gigawatt.nl> (raw)
In-Reply-To: <20101119135406.GA24391@gondor.apana.org.au>
On 19/11/10 14:53, Herbert Xu wrote:
> Harald van Dijk<harald@gigawatt.nl> wrote:
>> sh -c 'echo "${x:-\}}"'
>
> If you need to print anything involving a backspace you should
> use printf and not echo.
It's true that backslashes should not be passed to echo, but assuming
unset or empty x, "${x:-\}}" should expand to "}", and that is all echo
should see.
Cheers,
Harald
next prev parent reply other threads:[~2010-11-20 20:43 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-13 16:28 Quoted closing brace in variable default expansion Harald van Dijk
2010-11-13 16:41 ` Jonathan Nieder
2010-11-13 17:29 ` Harald van Dijk
2010-11-19 13:54 ` Herbert Xu
2010-11-20 0:43 ` Harald van Dijk [this message]
2010-11-20 20:57 ` Cristian Ionescu-Idbohrn
2010-11-21 13:42 ` [PATCH] [PARSER] Remove backslash before } in double-quotes in variable Jilles Tjoelker
2010-11-21 16:35 ` Jonathan Nieder
2010-11-23 18:46 ` Harald van Dijk
2011-03-10 8:59 ` Herbert Xu
2011-03-11 18:32 ` Jilles Tjoelker
2010-11-13 17:51 ` Quoted closing brace in variable default expansion Jilles Tjoelker
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