From: Robert Klemme <shortcutter@...>
Date: 2011-02-10T22:38:50+09:00
Subject: Re: System calls with ` in parameters

On Thu, Feb 10, 2011 at 11:21 AM, Tanaka Akira <akr@fsij.org> wrote:
> 2011/2/10 Gerad S. <geradstemke@gmail.com>:
>>
>> `echo "#{someVar}" | ./some-script.py > "#{outputFile}"`
>
> If you use Ruby 1.9.2, Open3.pipline() provides a way to run a pipline
> without shell.
>
> % ruby -ropen3 -e 'Open3.pipeline(["echo", "foo`bar`baz"], ["head",
> "-6c", :out => "/tmp/qux"])'
> % od -c /tmp/qux
> 0000000   f   o   o   `   b   a
> 0000006

Cool!  Thanks for sharing.

Is there also a version which would return an IO or accept a block
with IO parameter so we can feed something into the head of the
pipeline and read from the tail?

Kind regards

robert

-- 
remember.guy do |as, often| as.you_can - without end
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