Git exercise: rebase branch

Setup:

continue from the previous

git checkout -b uppercase
echo "HELLO" > greeting.txt
git commit -am "Change greeting to uppercase"
git checkout master // or main
echo "Greetings library" > README.md
git add README.md
git commit -m "Add readme"

The task

Which branches exist?
Look at the log for the master branch
Check out the uppercase branch
How does the log compare to the log on the master branch?
Rebase your uppercase branch with the master (git rebase master)
What did just happen? Draw it!
Now checkout the master branch
Merge uppercase into master
What does the log look like now?

Useful commands

git checkout <branch-name>
git rebase <branch-name>
git log --oneline --graph --all
git merge <branch-name>