The following is a sampling of the many available books on the subject.
The links are to publishers web sites, or Amazon.com.
Learning the UNIX Operating System,
by Peek, Todino and Strang.
5th Edn. O'Reilly (2002).
Generic reference, mostly command line tools.
More info
Unix in a Nutshell,
by Robbins. 3rd Edn. O'Reilly (2002). SVR4/Solaris
Other versions available, tuned to BSD, SCO etc.
More info
Unix for Oracle DBAs: pocket reference,
by D. Burleson, O'Reilly (2001)
Small, dense reference intended for Oracle DBAs migrating to Unix
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UNIX: Visual Quickstart Guide,
by D. S. Ray and E. J. Ray, Peachpit Press, (1998)
Command line tools only. Almost no pictures, in spite of the title.
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Unix Made Easy,
by J. Muster, McGraw-Hill 3rd Edn. (2002)
Large book but not very dense. Mostly command line tools
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Unix for the Impatient,
by Abrahams and Larson, Addison Wesley, 2nd Edn. (1997)
Command line tools only. Looks good but is fairly old.
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Life with UNIX: A guide for Everyone,
by Don Libes and Sandy Ressler.
Prentice Hall, out of print.
Unix Unleashed,
by Anderson and Johnston, SAMS, 4th Edn. (2002)
More of an administrator's handbook. Huge.
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The UNIX Time-Sharing System,
Dennis M. Ritchie and Ken Thompson, Comm. ACM 17, 7 (July 1974), 365-375.
The original publication describing Unix.
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The Art of Unix Programming,
Eric Steven Raymond, Addison Wesley, (2004).
The author has made the entire text available online via a Creative Commons license at
(www.catb.org/~esr/writings/taoup/html/), as well as a traditional printed version.
A great book on the Unix way of doing things. Heavy on philosophy, light on technical details.
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