To install, unpack (unzip) the installation archive anywhere you like. You will see directories for examples and the documentation.
Then, do a:
to install all of the OSGi bundles into your local repository. This allows the features.xml or features.talend-esb.xml file that is provided to load the bundles using the mvn URI protocol when working with Apache Karaf.
There are two versions of the features.xml file for different purposes
Talend ESB Runtime - this is called features.talend-esb.xml and contains the necessary bundles to be installed in the Talend ESB Runtime and a reference to the features required by the Data Mapper Runtime.
Apache Karaf - this is called features.xml and contains the necessary bundles to be installed in an unmodified Apache Karaf distribution. This includes bundles that the Data Mapper Runtime is dependent on.