Commandline OS X

Excuse me in advance if this has been asked before, I couldn't find it on a quick search.

So I've been looking into using Arduino from the commandline, there are several third party options but this link tells me it's included in the official package from 1.5.0:
http://playground.arduino.cc/Learning/CommandLine

However, when I type in arduino in the Terminal, it doesn't know the command. How do I install the official CLI?

the “arduino” command is the very same you use to start the IDE. Locate it on your hard drive. Then read the reference

Even when I cd to the location where Arduino.app sits it doesn't work.
So I start the Terminal. cd to /Applications/
Then typing arduinoz or Arduino` returns me "command not found".
I have a feeling I am missing something obvious, but I don't see it.

The CLI program is inside the application folder. On my system it is:
/Applications/Arduino\ 1.6.1.app/Contents/MacOS/Arduino

Note: I had renamed "Arduino.app" to be "Arduino 1.6.1.app" to keep track of the version. The space character has to be 'escaped' to use it in a command line. In the default case the command line program would be:
/Applications/Arduino.app/Contents/MacOS/Arduino

Ah! Found it, thanks! I expected it to be there but I needed to download the experimental version for Java 7. In the Java 6 version it is not there.