From: Alex Wayne <rubyonrails@...>
Date: 2008-04-09T04:08:30+09:00
Subject: System commands with streaming output

I have a long running system command that I want to print the output
from a ruby script.  Basically, this system command runs like a daemon
and prints output.  So it I just use:

  `./mycommand foo`

The output is completely supressed, and my ruby script simply appears to
hang.

So how can I execute a system command and have the output streamed back
to the terminal before the command finishes?
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