# File lib/fake_ftp/server_commands/rnfr.rb, line 6
      def run(ctx, rename_from = '', *)
        return '501 Send path name.' if rename_from.nil? || rename_from.empty?

        ctx.command_state[:rename_from] = if ctx.absolute?
                                            ctx.abspath(rename_from)
                                          else
                                            rename_from
                                          end
        '350 Send RNTO to complete rename.'
      end