From: Daniel Waite <rabbitblue@...>
Date: 2010-04-30T08:19:03+09:00
Subject: Ruby's %x{} -- running system commands

The command I execute within %x{...}, if executed on the command line,
works perfectly, every time.

If I run the same command within Ruby's %x{...}, I get mixed results.
Sometimes a blank string, other times the expected output.

Why?
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