    # File lib/chef/knife/configure_client.rb, line 26
          def run
            unless @config_dir = @name_args[0]
              ui.fatal "You must provide the directory to put the files in"
              show_usage
              exit(1)
            end

            ui.info("Creating client configuration")
            FileUtils.mkdir_p(@config_dir)
            ui.info("Writing client.rb")
            File.open(File.join(@config_dir, "client.rb"), "w") do |file|
              file.puts('log_level        :info')
              file.puts('log_location     STDOUT')
              file.puts("chef_server_url  '#{Chef::Config[:chef_server_url]}'")
              file.puts("validation_client_name '#{Chef::Config[:validation_client_name]}'")
            end
            ui.info("Writing validation.pem")
            File.open(File.join(@config_dir, 'validation.pem'), "w") do |validation|
              validation.puts(IO.read(Chef::Config[:validation_key]))
            end
          end