Other than the File System and the Network System, there are still additional subsystems and components that can be explored. Thus, selecting what subsystems to explore is not an easy task. It is a well-known fact that accomplishing a task in different types of Unix can sometimes be tricky, especially when dealing with OS specific commands. For instance if we want to know what are the kernel modules that are currently loaded, the command is different for AIX, HP/UX, Linux and Solaris, as shown here:
If you ever wondered how to accomplish a specific familiar task in a different flavor of Unix, there is a nice site that offers the way to perform many administrative tasks using the commands unique to that flavor of Unix. The site is known as the Rosetta Stone for Unix: http://bhami.com/rosetta.html.
In terms of a WAS ND7 installation, although this book is not about the actual installation procedure...