Hi had attached three files which nothing just dos command print screen.
You don't have to think too much or google it here and there but if you can google it than it will definitely help you too.
Above 3 images show three main command you can figure it out there
1 First to get download composer 2. Second to get yii installed on the local drive from git hum 3. Initilizing the project
You can access easily after initializing as
This is based on window os, so please do necessary steps for other os
Thank you. It took me 2-3 hrs to figure it out. I hope this could help you in figuring with in few minutes.