Owncloud
From Jon's Wiki
Install:
git clone https://github.com/owncloud/core.git owncloud cd owncloud git submodule init # 3rdparty directory git submodule update
There's a command-line tool for administering it:
sudo -u www-data php occ
Use this for upgrading point releases, adding and managing users, enabling and disabling apps, etc.
Upgrading from version 6.0
After version 6 the calendar and contacts apps were moved from core to the third party repository. You may need to disable them before upgrading from 6 to newer 8.x versions, and sort them out afterwards.