如何从远程计算机获取控制台输出（ssh + python）

发布于 2024-08-02 17:19:33 字数 481 浏览 7 评论 0原文

我用谷歌搜索了“python ssh”。有一个很棒的模块 pexpect，它可以使用以下命令访问远程计算机ssh（带密码）。

连接远程计算机后，我可以执行其他命令。但是我无法再次在 python 中得到结果。

p = pexpect.spawn("ssh user@remote_computer")
print "connecting..."
p.waitnoecho()
p.sendline(my_password)
print "connected"
p.sendline("ps -ef")
p.expect(pexpect.EOF) # this will take very long time
print p.before

在我的例子中如何获得 ps -ef 的结果？

原文

I have googled "python ssh". There is a wonderful module pexpect, which can access a remote computer using ssh (with password).

After the remote computer is connected, I can execute other commands. However I cannot get the result in python again.

p = pexpect.spawn("ssh user@remote_computer")
print "connecting..."
p.waitnoecho()
p.sendline(my_password)
print "connected"
p.sendline("ps -ef")
p.expect(pexpect.EOF) # this will take very long time
print p.before

How to get the result of ps -ef in my case?

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风铃鹿 2024-08-09 17:19:34

您尝试过更简单的方法吗？

>>> from subprocess import Popen, PIPE
>>> stdout, stderr = Popen(['ssh', 'user@remote_computer', 'ps -ef'],
...                        stdout=PIPE).communicate()
>>> print(stdout)

当然，这只有效，因为我已经使用远程主机知道的私钥预加载了 ssh-agent 运行。

Have you tried an even simpler approach?

>>> from subprocess import Popen, PIPE
>>> stdout, stderr = Popen(['ssh', 'user@remote_computer', 'ps -ef'],
...                        stdout=PIPE).communicate()
>>> print(stdout)

Granted, this only works because I have ssh-agent running preloaded with a private key that the remote host knows about.

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猛虎独行 2024-08-09 17:19:34

child = pexpect.spawn("ssh user@remote_computer ps -ef")
print "connecting..."
i = child.expect(['user@remote_computer\'s password:'])
child.sendline(user_password)
i = child.expect([' .*']) #or use i = child.expect([pexpect.EOF])
if i == 0:
    print child.after # uncomment when using [' .*'] pattern
    #print child.before # uncomment when using EOF pattern
else:
    print "Unable to capture output"


Hope this help..

child = pexpect.spawn("ssh user@remote_computer ps -ef")
print "connecting..."
i = child.expect(['user@remote_computer\'s password:'])
child.sendline(user_password)
i = child.expect([' .*']) #or use i = child.expect([pexpect.EOF])
if i == 0:
    print child.after # uncomment when using [' .*'] pattern
    #print child.before # uncomment when using EOF pattern
else:
    print "Unable to capture output"


Hope this help..

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