Re: |& in bash?

[Andreas Schwab]

Greg Wooledge <wooledg@eeg.ccf.org> writes:

> On Tue, Jan 22, 2013 at 06:56:31AM -0500, Steven W. Orr wrote:
>> By that logic,
>> 
>> foo 2>&1 | bar
>> 
>> should not work, but it does. It takes stderr and dups it to stdout, and 
>> *then* takes stdout and send it to a pipe.
>
> Incorrect.  The pipeline is created first, and *then* the dup (2>&1) is
> performed.

This is true, but not obviously so.  If you have the rule "redirections
are processed from left to right", then this looks like an outlier (if
you treat the pipe as another kind of redirection).

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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