[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: excess braces ignored: bug or feature ?
From: |
Greg Wooledge |
Subject: |
Re: excess braces ignored: bug or feature ? |
Date: |
Fri, 17 Feb 2012 14:55:13 -0500 |
User-agent: |
Mutt/1.4.2.3i |
On Fri, Feb 17, 2012 at 02:51:27PM -0500, Mike Frysinger wrote:
> can't tell if this is a bug or a feature.
>
> FOO= BAR=bar
> : ${FOO:=${BAR}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}
> echo $FOO
>
> i'd expect an error, or FOO to contain those excess braces. instead, FOO is
> just "bar".
imadev:~$ : ${FOO:=BAR}qqqqqqqqqqqq
imadev:~$ echo "$FOO"
BAR
It looks OK to me. You've got an argument word which happens to contain
a substitution-with-side-effects as part of it.
Re: excess braces ignored: bug or feature ?, Chet Ramey, 2012/02/19