I recently stumbled over a "new" tool in the Symfony environment called the Symfony installer. It's a simple little tool which help you to start a new project based on the Symfony full-stack framework.
The installation is extremely easy. Just download the installer via curl into your bin folder and make it executable:
$ sudo curl -LsS http://symfony.com/installer -o /usr/local/bin/symfony
$ sudo chmod a+x /usr/local/bin/symfony
From there one you can run the following command from every directory:
$ symfony new my_project
And to keep him up-to-date (similar to composer):
$ symfony self-update