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Preface Chapter 1. Korn Shell Basics What Is a Shell? Scope of This Book History of Unix Shells Getting the 1993 Korn Shell Interactive Shell Use Files Input and Output Background Jobs Special Characters and Quoting Chapter 2. Command-Line Editing Enabling Command-Line Editing The History File Emacs Editing Mode Vi Editing Mode The hist Command Finger Habits Chapter 3. Customizing Your Environment The .profile File Aliases Options Shell Variables Customization and Subprocesses Customization Hints Chapter 4. Basic Shell Programming Shell Scripts and Functions Shell Variables Compound Variables Indirect Variable References (namerefs) String Operators Command Substitution Advanced Examples: pushd and popd Chapter 5. Flow Control if/else for case select while and until Chapter 6. Command-Line Options and Typed Variables Command-Line Options Numeric Variables and Arithmetic Arithmetic for Arrays typeset Chapter 7. Input/Output and Command-Line Processing I/O Redirectors String I/O Command-Line Processing Chapter 8. Process Handling Process IDs and Job Numbers Job Control Signals trap Coroutines Shell Subprocesses and Subshells Chapter 9. Debugging Shell Programs Basic Debugging Aids A Korn Shell Debugger Chapter 10. Korn Shell Administration Installing the Korn Shell as the Standard Shell Environment Customization Customizing the Editing Modes System Security Features Appendix A. Related Shells Appendix B. Reference Information Appendix C. Building ksh from Source Code Appendix D. AT&T ast Source Code License Agreement Index
Bill Rosenblatt is author of the the O'Reilly Nutshell Handbook(R) Learning the Korn Shell; co-author, with Deb Cameron, of Learning GNU Emacs; and a contributor to UNIX Power Tools. He is director of publishing systems at the Times Mirror Company in New York City and a columnist in SunWorld Online magazine on the World Wide Web. Bill received a B.S.E. from Princeton University and an M.S. and A.B.D. from the University of Massachusetts at Amherst, each in some variant of computer science. His interests in the computing field include multimedia databases, electronic publishing, and object- oriented systems. Outside of the computing field, he's interested in jazz, classical music, antique maps, and Sherlock Holmes pastiche novels. Bill lives on the Upper West Side of Manhattan. He wishes his landlord allowed pets so that he could truthfully claim to have a dog and cat with suitably droll names like "Coltrane" and "Ravel." Arnold Robbins, an Atlanta native, is a professional programmer and technical author. He has worked with Unix systems since 1980, when he was introduced to a PDP-11 running a version of Sixth Edition Unix. He has been a heavy AWK user since 1987, when he became involved with gawk, the GNU project's version of AWK. As a member of the POSIX 1003.2 balloting group, he helped shape the POSIX standard for AWK. He is currently the maintainer of gawk and its documentation. He is also coauthor of the sixth edition of O'Reilly's Learning the vi Editor. Since late 1997, he and his family have been living happily in Israel.