From: Jos Backus <jos@...>
Date: 2011-05-13T02:22:58+09:00
Subject: Re: Shell pipeline in Ruby?

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Have you checked out Open3.pipeline?

Jos

-- 
Peace cannot be achieved through violence, it can only be attained through
understanding.
On May 12, 2011 9:06 AM, "Michal Suchanek" <hramrach@centrum.cz> wrote:
> Hello,
>
> how do you write an equivalent of
>
> $ cmdA | cmdB | cmdC
>
> in Ruby?
>
> Specifically, I would like to see the PID, return value and stderr of
> each of these commands but I would like cmdB to read the stdout of
> cmdA directly, on its stdin, and similarily for cmdC and cmdB.
>
> Here I am not interested in feeding cmdA some particular input (eg. it
> can read /dev/null for all I care) but in general gluing arbitrary fd
> to its stdin might be desirable in other cases.
>
> Thanks
>
> Michal
>

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