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Re: coproc FDs (file descriptors) available to subshells


From: Tadeus Prastowo
Subject: Re: coproc FDs (file descriptors) available to subshells
Date: Wed, 24 Jan 2018 15:50:04 +0100

On Wed, Jan 24, 2018 at 3:16 PM, Chet Ramey <address@hidden> wrote:
> On 1/24/18 3:38 AM, Tadeus Prastowo wrote:
>> Hi!
>>
>> To quote 
>> https://www.gnu.org/software/bash/manual/html_node/Coprocesses.html#Coprocesses
>>
>> "The file descriptors are not available in subshells."
>
> The file descriptors are set to close-on-exec, so they're not available
> to new processes, and closed explicitly when executing subshell commands
> such as ( ... ) and asynchronous commands run with `&'.  Command and
> process substitutions are created as exact copies of their parent, and
> inherit the file descriptors.

So, the documentation should be fixed, no?

> --
> ``The lyf so short, the craft so long to lerne.'' - Chaucer
>                  ``Ars longa, vita brevis'' - Hippocrates
> Chet Ramey, UTech, CWRU    address@hidden    http://tiswww.cwru.edu/~chet/

--
Best regards,
Tadeus



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