如何 SSH 交互式会话 [英] How to SSH interactive Session
问题描述
大家好
我需要在 linux 机器上执行命令这个命令是交互式的命令.交互式命令意味着需要输入 [yes , no] 或密码两次
I need to execute command on linux machine this command is interactive command. Interactive command means require input like [yes , no] or password twice
我的真实情况是.我创建了一个脚本执行命令并成功获取输出.但有些服务器的登录密码已过期,所以我需要与服务器发送当前密码+新密码(两次)
my real case is. I create a script execute commands and get the outputs successfully. but some servers has Loging password expired so I need to interact with server to send the current password + the new password(twice)
ssh userName@10.0.0.243
userName@10.0.0.243's password:
You are required to change your password immediately (password aged)
Last login: Sun Aug 7 13:15:40 2011 from 10.0.0.28
WARNING: Your password has expired.
You must change your password now and login again!
Changing password for user userName.
Changing password for userName
(current) UNIX password:
New UNIX password:
Retype new UNIX password:
注意事项::
- 我使用的是 Ruby 1.9.2
- 我在正常情况下执行命令没有问题
- 拜托,我必须避免使用 (echo "pass" | ssh -S) 之类的解决方法来让我通过任何其他交互情况.
- 我正在使用net/ssh"库
- 附上脚本http://king-sabri.net/files/LinuxHWScanner.rb
- 我尝试了net/ssh/telnet",但没有帮助
- 一些建议告诉使用rake/remote_task"是解决方案,但我无法理解它在我的情况下是如何工作的
如果你需要更简单,这里有一个简单的代码,如果你让它工作,我想它会解决我以前的问题
if you need more simplicity, here a simple code if you make it works I thing it'll solve my previous issue
require 'net/ssh'
host = "10.0.0.106"
port = 22 # SSH port
user = 'root' # username
pass = "123123" # password
Net::SSH.start( host,user,:password => pass, :port=> port , :verbose => :error ) do |session|
puts session.exec!("passwd root")
end
推荐答案
类似的事情?
Net::SSH.start('10.0.0.6', 'not_root', :password => "test") do |ssh|
ssh.open_channel do |channel|
channel.on_request "exit-status" do |channel, data|
$exit_status = data.read_long
end
channel.exec("passwd") do |channel, success|
if success
channel.on_data do |channel, data|
# Don't really need this callback actually
puts "got data: #{data.inspect}"
end
# You don't need this line if you're root
channel.send_data("oldpass\n")
channel.send_data("newpass\n")
channel.send_data("newpass\n")
else
puts "FAILED"
end
end
channel.wait
puts "SUCCESS" if $exit_status == 0
end
end
这个很脏,但在过早的到期提示和 passwd
发出时都适用:
This one is dirty, but working for both upon premature on-expiration prompt and upon passwd
issuing:
Net::SSH.start('localhost', 'not_root', :password => "test") do |ssh|
ssh.open_channel do |channel|
channel.on_request "exit-status" do |channel, data|
$exit_status = data.read_long
end
channel.on_data do |channel, data|
puts data.inspect
if data.inspect.include? "current"
channel.send_data("oldpass\n");
elsif data.inspect.include? "new"
channel.send_data("newpass\n");
end
end
channel.request_pty
# This will just safely fail if we have already a password prompt on
channel.exec("passwd");
channel.wait
# Will reflect a valid status in both cases
puts $exit_status
end
end
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