Mac OS Terminal: Unable to Get Composer in a Global Environment

So, I tried to configure MAMP and Laravel, but was stuck in getting the composer to work.

I installed MAMP and I use the command:

curl -sS https://getcomposer.org/installer | php

and I tried to run

php composer.phar

everything is working so far.

Then, when I tried to put the composer in my global path (I assume the next line does this)

mv composer.phar /usr/local/bin/composer

I get this error

mv: rename composer.phar to /usr/local/bin/composer: No such file or directory

I tried mv composer.phar /usr/local/binand also gave the same error.

Here is mine echo $PATH: /usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin

Any pointers to this? Oh, Mac Rookie is here.