A very simple bash script to easily change between your work and personal git identities in a repository.
Just modify the script with your own identities and save to any directory in your path (e.g. /usr/bin/local).
git-id [identity name]
To start a new personal project on a computer that globally has your work git credentials:
$ git init
Initialized empty Git repository in /Users/teel/Projects/git-id/.git/
$ cd testrepo
$ git-id personal
Changing GIT identity in current repository to personal
Ok