Like many I have been eager to install the latest Prestashop since its release.  One of the more common error while installing on a shared hosting is the installation process stops at 12% while creating database tables.

Fortunately, since release 1.5.4 Prestashop allows user to install from command line give you have SSH access.

$ php index_cli.php --domain=example.com --db_server=sql.example.com --db_name=prestashop --db_user=root --db_password=123456789 --email user@example.com

Hope you will find this useful.

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[Solved] Installing Prestashop on shared hosting like DH (Dreamhost)