如何在命令提示符下以清晰的格式打印输出

Question

我正在尝试通过 SSH 连接到客户端，然后运行命令，但是输出的格式与服务器 CLI 上显示的不同。

我曾尝试使用打印功能并尝试写入文件并检查了很多文章，但我想我缺少了一些需要寻找的东西。

import paramiko
import sys

hn = "valid IP Address"  #hostname of the client
ssh_client = paramiko.SSHClient()
ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh_client.connect (hostname = hn,username='randomUsername',password='randomPassword')
print ("Connected to %s \n" % (hn))

stdin, stdout, stderr = ssh_client.exec_command("ping 8.8.8.8 -c 4")
stdout = stdout.readlines()
print (stdout)

stdin, stdout, stderr = ssh_client.exec_command("ping 8.8.4.4 -c 4")
stdout = stdout.readlines()
print (stdout)

如何像这样打印输出并写入文件？当前输出是这样的

['PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.\n', '64 bytes from 8.8.8.8: icmp_req=1 ttl=57 time=21.3 ms\n', '64 bytes from 8.8.8.8: icmp_req=2 ttl=57 time=21.0 ms\n', '64 bytes from 8.8.8.8: icmp_req=3 ttl=57 time=21.0 ms\n', '64 bytes from 8.8.8.8: icmp_req=4 ttl=57 time=21.2 ms\n', '\n', '--- 8.8.8.8 ping statistics ---\n', '4 packets transmitted, 4 received, 0% packet loss, time 3003ms\n', 'rtt min/avg/max/mdev = 21.041/21.173/21.313/0.159 ms\n']
['PING 8.8.4.4 (8.8.4.4) 56(84) bytes of data.\n', '64 bytes from 8.8.4.4: icmp_req=1 ttl=57 time=19.4 ms\n', '64 bytes from 8.8.4.4: icmp_req=2 ttl=57 time=19.1 ms\n', '64 bytes from 8.8.4.4: icmp_req=3 ttl=57 time=18.8 ms\n', '64 bytes from 8.8.4.4: icmp_req=4 ttl=57 time=19.0 ms\n', '\n', '--- 8.8.4.4 ping statistics ---\n', '4 packets transmitted, 4 received, 0% packet loss, time 3003ms\n', 'rtt min/avg/max/mdev = 18.819/19.135/19.470/0.233 ms\n']

但是我需要这样打印

ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=56 time=3.79 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=56 time=3.58 ms
64 bytes from 8.8.8.8: icmp_seq=3 ttl=56 time=14.8 ms
64 bytes from 8.8.8.8: icmp_seq=4 ttl=56 time=3.37 ms
--- 8.8.8.8 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3005ms 
rtt min/avg/max/mdev = 3.375/6.409/14.891/4.899 ms

感谢您的帮助。

**** 解决了 **** 对于标准输出中的我：打印 (i)

Answer 1

Stdout 是一个字符串列表 - 遍历它并打印每个字符串而不是打印整个列表。

for i in stdout:
    print(i) # you can add end='' if you want to remopve the double spacing -> print(i, end='')

要写入文件，我建议从 python 关于 reading and writing files

的文档开始

Answer 2

另一种解决方案是：

print(stdout.getvalue())

关于 readlines() 与 getvalue() 的更多解释可以在此 post 中找到：

如何在命令提示符下以清晰的格式打印输出

How to print output in a clear format as it gets print on command prompt

python

network-programming

python-3.x