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Building Unix Tools with Ruby (O'ReillyNet)
O'ReillyNet takes
a look at building tools with Ruby. "Once you have a properly
initiated instance of the option parser, you can add code to checks which
options have been selected and what mistakes have been made. GetoptLong
provides a lot of help here; your job is limited to defining a few global
variables and handling any errors that may occur at this stage."
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