Install Git on Mac

The git installer for Mac that you used should have installed git into /usr/local/git. Check if /usr/local/git/bin is included in PATH.  Running echo $PATH from the terminal and make sure that you see  /usr/local/git/bin .

(Note: Mac OS has already preinstalled git which is installed to /usr/bin, so you may not need install again if you don‘t want to use the latest version)

If not, you need to add it to your PATH

1. Mount the git-osx-installer disk image by double-clicking xxx.dmg
2. Open Terminal 
3. Type cd /Volumes/xxx/
4. Type ./setup git PATH for non-terminal programs.sh and hit Enter to run the shell script. 
5. Open a new Terminal and type echo $PATH
6. Confirm that you see /usr/local/git/bin in your PATH.

If you want to uninstall git, you can follow the steps below:

Install Git on Mac

原文：http://blog.csdn.net/chuwachen/article/details/44948635