Details

If you have git already installed globally on your machine
and you want to work on a project with different credentials
for example your work redentials. Do this

At the root of the repository, enter the following commands

git config --local user.name "Your Work Name"
git config --local user.email "your_work_email@example.com"

This will change the git credentials only for the specified project.

Use the --global flag to change the credentials for all repos.

To view the git credentials for a repo, type

git config user.name
git config user.email

Or git config --list to view all