Computer Systems Research Group, UC Berkeley. 4.4BSD User's Reference Manual. O'Reilly & Associates, Inc., 1994. ISBN 1-56592-075-9
Computer Systems Research Group, UC Berkeley. 4.4BSD User's Supplementary Documents. O'Reilly & Associates, Inc., 1994. ISBN 1-56592-076-7
UNIX in a Nutshell. O'Reilly & Associates, Inc., 1990. ISBN 093717520X
Mui, Linda. What You Need To Know When You Can't Find Your UNIX System Administrator. O'Reilly & Associates, Inc., 1995. ISBN 1-56592-104-6
Ohio State University 寫了份 UNIX Introductory Course ，可以 HTML 和 postscript 的格式線上取得。
Jpman Project, Japan FreeBSD Users Group. FreeBSD User's Reference Manual (日文翻譯)。 Mainichi Communications Inc., 1998. ISBN4-8399-0088-4 P3800E.
Edinburgh University has written an Online Guide for newcomers to the UNIX environment.