how to change user in git bash code example

Example 1: add git user and email

git config --global user.email "[email protected]"
git config --global user.name "My Name"

Example 2: git config username

$ git config --global user.name "John Doe"
$ git config --global user.email [email protected]

Example 3: set username git

git config --global user.name "My Name"