mac osx update composer code example
Example 1: update composer mac
#Ubuntu-Download Composer and create a Phar (PHP Archive) file
$ curl -s https://getcomposer.org/installer | php
#Move it to bin directory
$ sudo mv composer.phar /usr/local/bin/composer
Example 2: where do you install composer
// Adding permissions after installing Composer on Mac OSX
sudo chmod 755 /usr/local/bin/composer.phar