Collect commands with Netmiko

demo 1

$ python
Python 3.6.8 (default, Oct  9 2019, 14:04:01)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from netmiko import ConnectHandler
>>> vMX1 = {'device_type': 'juniper_junos', 'host': '100.123.1.0', 'username': 'jcluser', 'password': 'Juniper!1'}
>>> dev = ConnectHandler(**vMX1)
>>> dev.is_alive()
True
>>> dev.device_type
'juniper_junos'
>>> dev.port
22
>>> dev.find_prompt()
'jcluser@vMX1>'
>>> command_output = dev.send_command("show chassis hardware")
>>> print (command_output)

Hardware inventory:
Item             Version  Part number  Serial number     Description
Chassis                                VM5DD38DAF50      VMX
Midplane
Routing Engine 0                                         RE-VMX
CB 0                                                     VMX SCB
FPC 0                                                    Virtual FPC
  CPU            Rev. 1.0 RIOT-LITE    BUILTIN
  MIC 0                                                  Virtual
    PIC 0                 BUILTIN      BUILTIN           Virtual

>>> dev.disconnect()
>>> dev.is_alive()
False
>>> exit()

demo 2

let's run the script collect_commands.py

$ python collect_commands.py

$ ls show*
show chassis hardware.json  show chassis hardware.xml     show system information.txt
show chassis hardware.txt   show system information.json  show system information.xml

$ more show\ chassis\ hardware.txt

Hardware inventory:
Item             Version  Part number  Serial number     Description
Chassis                                VM5DD38DAF50      VMX
Midplane
Routing Engine 0                                         RE-VMX
CB 0                                                     VMX SCB
FPC 0                                                    Virtual FPC
  CPU            Rev. 1.0 RIOT-LITE    BUILTIN
  MIC 0                                                  Virtual
    PIC 0                 BUILTIN      BUILTIN           Virtual