Enterprise Server is designed to provide its functionality in a modular form so that you can choose to include the functionality that you need and leave out the functionality that is not needed. Over time, new add-on components will be developed and existing components will be modified.
You can install new components or updated components by using the graphical Update Tool, which can be accessed in the Enterprise Server Administration Console. If you are interested in exploring the standalone version, run the updatetool command in the as-install/bin directory. Extensive online help is provided for both graphical versions.
From the command line, you can use the pkg(5) command to extend Enterprise Server. The pkg command, located in the as-install/bin directory, can perform most of the tasks offered by the graphical Update Tool. However, the main reasons for using the pkg command are:
As a basis for creating update scripts
As a method for working with systems that do not have a monitor, graphic card, or keyboard (headless systems)