Ruby-使用ssh检查ping状态featback，通过ssh反击？ [英] Ruby - checking ping status featback with ssh, backtick via ssh?

问题描述

在我的项目中，我想编写一个脚本来检查网络中的每个设备是否在线/可访问。我有一个叫做pingtest的方法，它现在可以使用。.

In my project I want to write a script to check if every device in my network is online/reachable. I have a method called pingtest and it works for now..

def pingtest(destination)
    system("ping -n 2 #{destination}")
    if $? == 0                                #checking status of the backtick
        puts "\n Ping was successful!"
    else
        close("Device is unreachable. Check the config.txt for the correct IPs.")
        #close() is just print & exit..
    end
end

现在我想通过ssh ping与网络中其他设备的会话：

Now I wanted to ping via a ssh session with an other device in my network:

#--------------------------------
require 'net/ssh' 
Net::SSH.start(@ip, @user, :password => @password)
#--------------------------------

@ssh = Ssh.new(@config)
@ssh.cmd("ping -c 3 #{@IP}")

ping正常，但是现在如何使用回溯思路确定是否成功？

我考虑过使用sftp连接。.

The ping works fine but how can I use my backtrack idea now to determine if it was succesful or not?
I thought about using a sftp connection..

ping -c 3＃{@ IP} => tmpfile.txt =>下载=>检查/比较=>删除

"ping -c 3 #{@IP} => tmpfile.txt" => download => check/compare => delete

（或类似的东西）来检查它是否正确，但我对此没有资格。是否可以像以前一样检查成功状态？

我也尝试过类似的方法。

(or something like that) to check if it was correct, but im not statusfied with that. Is there a possibility to check the success status like I did before?
I also tried something like this..

result = @ssh.cmd("ping -c 3 #{@IP}")
if result.success? == 0 # and so on..

几天前我开始学习红宝石，所以我是新手

I startet learning ruby some days ago, so im a newbie looking forward for your ideas to help me with this problem.

推荐答案

您可以使用Net :: SSH远程运行命令，

You can use Net::SSH to run the command remotely, similarly to what you've already got there.

从运行命令返回的结果将是所写的内容到 stdout 和 stderr 。

The result returned from running the command will be whatever is written to both stdout and stderr.

您可以使用返回值的内容以检查其是否成功。

You can use the contents of that returned value to check if it was successful or not.

Net::SSH.start(@ip, @user. password: @password) do |ssh|
  response = ssh.exec! "ping -c 3 #{@other_ip}"
  if response.include? 'Destination Host Unreachable'
    close("Host unreachable. Result was: #{result}")
  else
    puts "\n Ping was successful"
  end
end

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