/ Published in: Bash
First, find the proper package from http://www.joomla.org/download/ and copy its path. Then, over ssh, navigate to the root of the joomla install and perform these commands. In the case of an upgrade, this will overwrite in place the needed files, and in the case of an install, will unpack the package directly in the folder it was uploaded to. Much faster than unzipping locally and ftping.