From: BitTwister@mouse-potato.com   
      
   On Fri, 02 Nov 2012 09:33:56 +0100, herman.viaene@invalid.be.invalid wrote:   
      
   > Strange is that these books give explanations on what environment variables   
   > are, how to set and echo these, have explanations on what is scripting   
   > (variables, return values, etc....), but not a single example of how an   
   > environment variable is tested.   
   > I bookmarked it, tx. It'll give me something to read when the weather is too   
   > bad.   
      
   You might want to check this section before waiting for the rainy day.  :)   
   http://tldp.org/LDP/abs/html/comparison-ops.html   
      
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