A NEMO program is invoked just as any other application program under the operating system. Of course you must have modified your shell environment (see Appendix on how to modify your account).
In the first section the keyword interface is explained. Subsequently, we will explain some of the more advanced concepts of this user interface, which can be skipped on first reading without loosing any essentials. Some of these advanced features may not even be available in your local implementation. The last section discusses the overall documentation system in NEMO, and how to get different types of help. Appendix serves as a reference guide to the various user interfaces.