"Terminal, shell, command line interpreter (CLI), command prompt etc."
Disclaimer 1: No right or wrong way, these tips are subjective — 'you do you'!
Disclaimer 2: I hope you'll take away something from this — you might know all of this by heart already.
Disclaimer 3: Limited preparation time … I tried to group some topics, will not attempt to present a complete overview of the Terminal — nor go too much in-depth.
Let me know if you like more tips.