how to change global name and email in git code example

Example 1: git set email and name for repo

# For setting inside project folder
git config user.name "Neeraj Singh"
git config user.email '[email protected]'

Example 2: git change username email

# FOR ALL REPOS
## change username
git config --global user.name "John Doe"
## change email address
git config --global user.email "[email protected]"

# FOR CURRENT-DIRECTORY REPO ONLY
## change username
git config user.name "John Doe"
## change email address
git config user.email "[email protected]"