【问题标题】:Paramiko with Juniper echos commands executed使用 Juniper 执行的 Paramiko 回显命令
【发布时间】:2020-04-25 07:29:05
【问题描述】:

当使用 Paramiko 从 Juniper 获取 o/p 时,输出首先显示命令,然后执行命令。下面是代码和输出

import paramiko
import getpass
password = getpass.getpass()
with open('ips.txt','r') as f:      
    ip = f.read().splitlines()
for device in ip:
    ssh_client = paramiko.SSHClient()
    ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    ssh_client.connect(device, port=22, username='test', password=password, look_for_keys=False, allow_agent=False)
    remote_connection = ssh_client.invoke_shell()
    remote_connection.send('set cli screen-length 500\n')
    remote_connection.send('ping 4.2.2.2 rapid\n')
    import time
    time.sleep(3)
    output = remote_connection.recv(4096)
    print(output.decode())
    with open('Backup.txt', 'a+') as f:
        f.write(output)
        f.write("\n********************\n")
    ssh_client.close()

输出如下:

Password: 
--- JUNOS  XXX built XXX
set cli screen-length 500 <---- Is it something relevant with Juniper when running python with paramiko. 
ping 4.2.2.2 rapid <-----
{master:0}
XXX> set cli screen-length 500 
Screen length set to 500

{master:0}
XXX> ping 4.2.2.2 rapid
PING 4.2.2.2 (4.2.2.2): 56 data bytes
!!!!!
--- 4.2.2.2 ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max/stddev = 43.876/52.403/55.517/4.345 ms

【问题讨论】:

    标签: python ssh paramiko juniper juniper-network-connect


    【解决方案1】:

    您正在通过模拟在交互式 shell 终端界面上键入命令来执行命令。因此,终端会回显您“键入”的内容也就不足为奇了。

    要自动执行命令,请不要使用 shell 终端。使用 SSH“执行”通道。在 Paramiko 中是 SSHClient.exec_command

    Python Paramiko - Run command

    【讨论】:

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