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Three levels of GIT config

via http://www.codinginahurry.com/2011/02/05/three-levels-of-git-config/

Very nice explanation, via coding in a hurry
There are 3 levels of git config; project, global and system.
      • project: Project configs are only available for the current project and stored in .git/config in the project's directory.
      • global: Global configs are available for all projects for the current user and stored in ~/.gitconfig.
      • system: System configs are available for all the users/projects and stored in /etc/gitconfig.
Create a project specific config, you have to execute this under the project's directory.
git config user.name "John Doe"
Create a global config
git config --global user.name "John Doe"
Create a system config
git config --system user.name "John Doe"
And as you may guess, project overrides global and global overrides system.