Apologies if this is the wrong forum for this. If so please redirect me. 

I am running emacs on MacOSX, installed from a DMG file. 

It works great, but it is not aware of my path, so I can't execute commands like 'git' or 'svn' etc. 

How can I configure it to be aware of my path. I'm using the global path variable file /etc/profile.