Because of its scope, this document makes certain assumptions about your knowledge of UNIX. If you want to learn more about UNIX, there are a variety of sources of information. Man pages should exist for all of the commands used in this file (if they don't, it's a bug, which should be reported using sendbug). Other SIPB Inessential guides and the publications from IS are also great sources of information; SIPB Inessential Guides can be found at http://www.mit.edu/sipb/docs.html or /mit/sipb/doc/ and you can visit http://web.mit.edu/is/pubs for a listing of IS publications.