Tips and Tricks
When you log into the device with user root, you will have to enter operational mode with cli
Show Interface Status
run show interfaces terse

show interfaces descriptions

Show Config by Command
show | display set | no-more

Configure root account
set system root-authentication plain-text-password
As you make changes to the config, you are creating a candidate configuration. Once you commit the config, the candidate becomes the running.
Use commit check to make sure the config you applied is valid upon being committed.
Use show | compare to check all of your changes before committing.
Load a full config file
If your config file contains all set commands, you can use load set relative terminal, then enter and Control-D:

commit check
If your config file is in .xml format, you need to use load merge relative terminal, then enter and Control-D

Find specific line in config
show | display set | match system

See which interface a MAC address is learned on
show ethernet-switching table

ARP: show arp no-resolve
Gracefully shut down the device
request system halt
If you press a key, it will restart instead of shutting down