change branch in git cli code example

Example 1: how to swap branch git

[git checkout "branch_name"]

is another way to say:

[git checkout -b branch_name origin/branch_name]

in case "branch_name" exists only remotely.

[git checkout -b branch_name origin/branch_name] is useful in case you have multiple remotes.

Regarding [git checkout origin 'another_branch'] I'm not sure this is possible, AFAK you can do this using "fetch" command -- [git fetch origin 'another_branch']

Example 2: how to switch branches in git

- git checkout xyz =
                checks out the branch, switches to the branch.
- git checkout -b <branch_name> =
                creates a new branch and switches to it.
- git merge <branch_name> =
                this command takes changes from the given branch,
                and merges with the current branches we are on.