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Message: [QUOTE="Zach Dennis, post: 4441346"] Yeah, I learned that the hard way ;), I am initializing d to nil just above it....but while we're on this topic I have another order of operations question.....It involves the && in a conditional statement d = nil dir = Dir.new( d ) if( $*.length > 0 && File.directory?( d=$*.shift ) ) I cannot get this statement to work either, and I have tried flip flopping the conditions around, but it always complains when I don't pass in a command line argument. If $* is an empty array shouldn't Ruby test the first condition and see that it is false, then quit and do not test the second condition? Thanks, Zach [/QUOTE]