# File lib/chef/knife/node_show.rb, line 39
      def run 
        @node_name = @name_args[0]

        if @node_name.nil?
          show_usage
          Chef::Log.fatal("You must specify a node name")
          exit 1
        end
        
        node = Chef::Node.load(@node_name)
        output(format_for_display(node))
      end