Documentation for Confluence 2.5.4 - 2.5.8.
Documentation for [Confluence Cloud] and the latest Confluence Server is available too.

Often in the documentation, you'll see a reference to the "ConfluenceHome" directory. This is the directory in which Confluence stores its configuration information, search indexes, custom decorators and page attachments. Also, if you're using the embedded HSQL database, the database is also stored in this directory.

When Confluence first starts up, it reads a file called confluence-init.properties, which is located inside the confluence/WEB-INF/classes directory under where you unpacked the distribution. This file contains a single line telling Confluence where the ConfluenceHome directory is. If you ever forget where you put your home directory, check confluence-init.properties.