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Re: implicit redirection of background within pipeline


From: Andreas Schwab
Subject: Re: implicit redirection of background within pipeline
Date: Wed, 13 Jan 2016 10:13:06 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux)

Martin Kealey <address@hidden> writes:

> The standard is actually a bit vague; under "Compound Commands" it mentions
> that "Each redirection will apply to all the commands within the compound
> command that do not explicitly override that redirection" but it fails to
> mention that this applies to pipes as well; so I submit that it is a
> reasonable interpretation that a pipe on an outer block counts as an
> (explicit) redirection for the purpose of reading the "Asynchronous Lists"
> sub section.

I don't think so.
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_07
doesn't mention pipelines.

Andreas.

-- 
Andreas Schwab, SUSE Labs, address@hidden
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