python - 如何在 Linux 下 ssh.invoke_shell() 工作

Question

import paramiko
import os
import sys

#Data conection
ssh_servidor = 'xxx.xx.xx.xxx'
ssh_usuario = 'yyy'
ssh_clave = 'pws'
ssh_puerto = yy

# Conect to the server
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

# Open a server session
ssh.connect(ssh_servidor, ssh_puerto, ssh_usuario, ssh_clave)
channel = ssh.invoke_shell()
channel.send('clear')
channel.send('\n')
channel_data = str()

while True:

    if channel.recv_ready():
        enter code herechannel_data += channel.recv(9999)
        print '############ Device Ouput ##############'
        print channel_data
        print '########################################'

    else:
        continue

    if channel_data.endswith('xxxx@yyyyy~$'):
        channel.send('ls | grep mmmm')
        channel.send('\n')

问题是理论上 varchannel_data 必须有并打印这:

############ Device Ouput ##############
Linux tito 2.6.32-5-amd64 #1 SMP Fri May 10 08:43:19 UTC 2013 x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Thu Dec 14 10:01:15 2017 from .xx.xx.xxx

xxxx@yyyyy~$ 
########################################

为此，它打印出以下内容:

############ Device Ouput ##############
Linux tito 2.6.32-5-amd64 #1 SMP Fri May 10 08:43:19 UTC 2013 x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Thu Dec 14 10:01:15 2017 from .xx.xx.xxx

########################################

主机“xxxx@yyyyy~$”从未出现过，所以我要求时的代码部分:

if channel_data.endswith('xxxx@yyyyy~$'):

这从未发生过。

与我看到的 paramiko 库示例的唯一区别是代码可以在 Windows 上运行。

那么问题是，此时 win 和 Linux 之间有什么区别？

为什么 S.O.不显示主机 xxxx@yyyyy~$ ？

有什么建议吗？

Answer 1

我找到了答案:

channel_bytes=channel.recv(9999)

channel_data = channel_bytes.decode("utf-8")

否则，人们会遇到使用字节(来自缓冲区)作为字符串的情况。

谢谢大家!!