Changing the color of the path in Terminal.app
I set the PS1 variable in my .bashrc to achieve this.


Open Terminal
[editorofchoice] ~/.bashrc
Add a line with the following: 


PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '


Save the .bashrc
Exit Terminal and re-open. You should now have a green prompt.