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Re: Incorrect alias substitution


From: Mike Frysinger
Subject: Re: Incorrect alias substitution
Date: Tue, 24 Feb 2009 21:27:20 -0500
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On Tuesday 24 February 2009 21:14:46 Vincent Lefevre wrote:
> On 2009-02-24 19:32:05 -0500, Paul Jarc wrote:
> > Vincent Lefevre <address@hidden> wrote:
> > > I get the following errors with bash 3.2.39 under Debian/unstable:
> > >
> > > bash -c 'alias a="echo OK >&2"
> > >  a
> > >
> > >  > /dev/null a'
> > >
> > > bash: line 1: a: command not found
> > > bash: line 2: a: command not found
> >
> > aliases aren't expanded by a non-interactive bash by default.  If you
> > do "shopt -s expand_aliases", then they'll be expanded.
>
> I can see that "a" is expanded if I use --posix.
> But "> /dev/null a" is not expanded, while the other shells expand it.

same behavior can be seen when typing things manually in an interactive shell
-mike

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