The GIT Community Book gitbook.pdf

Config

    $ git config --global user.name "Scott Chacon"
    $ git config --global user.email "schacon@gmail.com"

That will set up a file in your home directory which may be used by any of your projects. By default that file is ~/.gitconfig
and the contents will look like this:

    [user]
              name = Scott Chacon
              email = schacon@gmail.com

If you want to override those values for a specific project (to use a work email address, for example), you can run the git
config command without the --global option while in that project. This will add a [user] section like the one shown above to
the .git/config file in your project's root directory.

Cloning

To get a copy from the central repository;

git clone git://www.kernel.org/pub/scm/git/git.git
git clone ssh://www.kernel.org/pub/scm/git/git.git

Initialising