how do i upload my code on git hub

Why do you need to write git push -u origin main the first time you commit but only need git push on subsequent pushes? What exactly does -u origin main mean in git?

how to write  a commit to a branch?

what is git?

do you know much about uploading files onto a git repository?

what is git?

What does the Git terminal look like?

How do I create a new Git repository with an empty folder and link it to GitHub?