# File lib/aruba/api.rb, line 212
    def run_simple(cmd, fail_on_error=true)
      @last_exit_status = run(cmd) do |process|
        announce_or_puts(process.stdout) if @announce_stdout
        announce_or_puts(process.stderr) if @announce_stderr
        process.stop
      end
      @timed_out = @last_exit_status.nil?

      if(@last_exit_status != 0 && fail_on_error)
        fail("Exit status was #{@last_exit_status}. Output:\n#{all_output}")
      end
    end