About UNIX
The operating system used on ACS is IBM's AIX, a version of UNIX.
When you connect to the ACS cluster using telnet, ssh or an X-Windows session, you will be working in the UNIX environment.
Even if you do not usually log in to ACS or type UNIX commands, you may find that understanding UNIX will help you understand how your account works.
The information below will help you to learn more about UNIX on ACS.
