Try it. And catch it, finally.

Most of the time, Mac OS X programs do not use environment variables like the “PATH”. However, sometimes I use tools that require such Variables. Contrary to well known places to put this kind of information in a Unix Environment (like /etc/profile, /etc/bashrc, ~/.profile, or ~/.bashrc files) the recommended way of doing this is the following:

1. Add the following File to your User Directory, if it does not already exist:
   ~/.MacOSX/environment.plist
2. Open it with some Text Editor and add the following XML Code
   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">

   <plist version="1.0">
       <dict/>
   </plist>

3. Open the File in the Finder and add beneath “Root” an Environment Variable with the Mac OSX Plist Editor.
4. Log off and on again.
5. Enjoy.