Parse Cisco SSH commands using Python: RegEx Parser Part 5/9: Configuration Parsing

#RegexExample #RegexPython #ParseSSH Playlist: Learn to Parse Cisco Configuration using Python RegEx:re Tutorial https://www.youtube.com/playlist?list=PLOocymQm7YWY8Eksax8mjRSWbUijb7W93 Playlist: Python Learning for Network Engineers https://www.youtube.com/watch?v=sG_RiytUA38&list=PLOocymQm7YWakdZkBfCRIC06fv7xQE85N Playlist: Learn to Read Data From CSV Using Python https://www.youtube.com/watch?v=3XoVPJkHMFU&list=PLOocymQm7YWYpP_Qkju89vN8BykhvWO5U Playlist: Paramiko detailed explanation with Example for Network Engineers https://www.youtube.com/watch?v=A075aWJMAeM&list=PLOocymQm7YWYc73phqzbZ1S3ANrVVpUFN Script ------- import paramiko import time from getpass import getpass import re version_pattern = re.compile(r'Cisco .+ Software, Version (\S+)') model_pattern = re.compile(r'cisco (\S+).+bytes of memory\.') serial_no_pattern = re.compile(r'Processor board ID (\S+)') uptime_pattern = re.compile(r'(.+) uptime is (.*)') lab_csr = { 'host': 'csr1.test.lab', 'username': 'admin', 'password': 'admin' } devnet_csr = { 'host': 'ios-xe-mgmt-latest.cisco.com', 'username': 'developer', 'password': 'C1sco12345' } def cisco_parse_version(host,username,password): try: print(f"\n{'#' * 55}\nConnecting to the Device {host}\n{'#' * 55} ") 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(b'show ver\n') time.sleep(1) output = (DEVICE_ACCESS.recv(65000).decode('ascii')) version_match = version_pattern.search(output) print('IOS Version'.ljust(18)+': '+version_match.group(1)) model_match = model_pattern.search(output) print('Model '.ljust(18)+': '+model_match.group(1)) serial_no_match = serial_no_pattern.search(output) print('Serial Number '.ljust(18)+': '+serial_no_match.group(1)) uptime_match = uptime_pattern.search(output) print('Host Name '.ljust(18)+': '+uptime_match.group(1)) print('Device Uptime '.ljust(18)+': '+uptime_match.group(2)) print(f"\n{'#' * 55}\nFinished Executing Script\n{'#' * 55} ") SESSION.close() except paramiko.ssh_exception.AuthenticationException: print("Authentication Failed") except AttributeError: print("Parsing Error, Please check the command") except: print("Can not connect to Device") cisco_parse_version(**devnet_csr) -------------------- cisco parse output using regex,ssh output parsing python,cisco parsing tutorial,show command parsing beginner,paramiko ssh output read,find the pattern using regex tutorial,python regular expression tutorial,command output parser,parse from text output using python regex,hostname parser cisco python,interface details parser python,device details parser from text using python,regex sample,cisco regex example,cisco python automation tutorial, This Video demonstrates how to parse Cisco show command output