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Chapter 16 - Miscellaneous Routines

UNIX Systems Programming for SVR4
David A. Curry
 Copyright © 1996 O'Reilly & Associates, Inc.

Chapter Summary
Just as we began this book with a discussion of the numerous little functions that you've probably used every day, we finish the book with a discussion of a number of functions that you may not use every day, but that are just as useful. The number of functions available to the systems programmer grows with every release of UNIX. Some of the new functions are useful, and others are less so. As new functions are added, some of them catch on and start to show up in lots of programs. These functions tend to start propagating to other versions of UNIX, as programmers demand them. Other functions are added and then later removed, as their use never catches on or as better replacements are developed.
Most of the functions described in this chapter are available in most newer versions of UNIX. The exception to this rule, unfortunately, are the search functions, which are available only in System V-based versions. Hopefully, as more vendors standardize on (or at least adopt parts of) SVR4, this will become less of a portability problem.

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