From: Zhao Yi <youhaodeyi@...>
Date: 2009-01-07T17:32:13+09:00
Subject: A question about running external program

I use this method to run an external program:

output=`uname -r | sed 's/\([^\.]*\.[^\.]*\)\.*.*/\1/'`
puts output

ruby will ignore the sed command. Doesn't ruby support "|"?
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