From: Jim Freeze <jim@...>
Date: 2005-02-25T14:24:48+09:00
Subject: Re: How to extend $stdout#write for system calls?

* Joel VanderWerf <vjoel@PATH.Berkeley.EDU> [2005-02-25 08:27:04 +0900]:

> Joel VanderWerf wrote:
> >class IO
> >  def tee
> >    IO.popen("-") do |pipe| # Won't work on mswin.

Windows shmwindows. So what?  ;)

> >      if pipe # parent
> >        while (str = pipe.gets)
> >          puts str
> >          $stdout.puts str
> >        end
> >      else # child
> >        yield
> >      end
> >    end
> >  end
> >end
> >
> >f=File.open("/tmp/tee-example-output", "w+")
> 
> f.tee do
>   puts "something"
>   puts "something else"
>   system("echo", "from system")
> end

Nice twist on this. I like it, but maybe I'm too tired.
How would I integrate capturing stderr also?
I tried popen3, but couldn't get that to work either.

-- 
Jim Freeze
Code Red. Code Ruby