From: Lex Williams <etaern@...>
Date: 2008-10-03T19:48:51+09:00
Subject: Re: Using Shell linux commands in Ruby!

pros and cons ?

pro would be that you can write your own version of a binary

con would be that a shell is spawned to execute the command

Another way to execute a command would be through the system method. But 
then you couldn't get the command output that easily , since system 
returns an exit code .
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