a simple video aimed at beginners, entry-level network techs, or network admins who are unfamiliar with the Cisco Command Line Interface (CLI).
This short video will help you get access and at least give you some knowledge so that when you have to work with Cisco support, you will seem as though this is not your first time.
The basic command covered in this video are:
Enable
Show Running Config
Setup
Config Terminal
Write
cisco