Скачать или смотреть Python Tutorial: Learn to Save Cisco command Output to Text file | Regex Parser Part 2

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This is the second video on Regex
Here we will see how take device configuration backup to a text file, take show command output to a text file for checking the configuration parsing logic
Users paramiko and initiates SSH connection, then in python while loop we takes user inputs and executes those commands in the ssh terminal stores that file as a text file
How to give sequence number for file in python,how to execute command in while loop and how to break while loop with specific user inputs ot exit
python replace space in the filename with underscore

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Script
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#! /usr/local/Python_envs/Python3/bin/python3
import paramiko
import time

host = 'csr1.test.lab'
username = 'admin'
password = 'admin'

n = 0
while True:

show_command = input("Enter Show command to execute: ")
if show_command in ['','exit']:
print("Exiting the Code")
break

SESSION = paramiko.SSHClient()
SESSION.set_missing_host_key_policy(paramiko.AutoAddPolicy())
SESSION.connect(host, port=22,
username=username,
password=password,
look_for_keys=False,
allow_agent=False)

DEVICE_ACCESS = SESSION.invoke_shell()
DEVICE_ACCESS.send(b'term length 0\n')
DEVICE_ACCESS.send(f'{show_command}\n')
time.sleep(1)
output = DEVICE_ACCESS.recv(65000)
print (output.decode('ascii'))
SESSION.close()
n = n+1
with open (f"{n:02d}_{show_command.replace(' ','_')}_output.txt", 'w') as f:
f.write(output.decode('ascii'))

print (f"\n{'#' * 50}\nConfiguration Saved Successfully \n{'#' * 50}\n")
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