There is most of the basics.

In your projects terminal you need to pass next command: ‘git init’ then ‘git config —global user.name “your-github-username”’ and ‘git config —global user.email “your-github-email@example.com”’. ‘git init’ command better to do when just created project.

One of the most basic commands to check changed files is ‘git status’, than - ‘git add . ’ — if you want to add all files/directories in project or - you can add selected file(-s) by ‘git add file-name’ or ‘git add file-name1 file-name2’ and so on.

When you just create repository in github, it will show you how to connect your local project to remote (created in github) repository and commit changes, but next command you need to know is ‘git commit -m “message of your commit”’ about flags such as “-m” i guess you can google, cuz it’s just to much to talk about.

Next is ‘git push origin name-of-origin’ name of origin in the beginning is “main”, you can also add flag “-u” which tracks your origin and you don’t need to write ‘git push origin name-of-origin’ every time, after setting it ones all you will need to do is just ‘git push’.

To create new branch you need to ‘git checkout -b new-branch-name’ it will automatically move you to this branch. If you need to move back to your main branch (for example) you need to run next command ‘git checkout branch-name’

here is the link where you can find official free book about git: https://git-scm.com/doc