FastCli(& Cli) tool in Arista EOS

Cli and FastCli are tools (written in python) that are available on Arista switches that allow you run any show or configuration commands directly from BASH. Some engineers are better BASH programmers than python programmers, the FastCli tool allows such engineers program their switches by using BASH scripts. In addition, for certain business cases the distributed model(running automation scripts directly on the switch) works better than the centralised management model (where scripts that perform specific actions run from a central server ), being able to use FastCli from within BASH enables this distributed network automation model.