The UNIX programming environment
In their preface, the authors explain, "This book is meant to help the reader learn how to program in C. It contains tutorial introduction to get new users started as soon as possible, separate chapters on each major feature, and a reference manual. Most of the treatment is based on reading, writing, and revising examples, rather than on mere statement of rules. For the most part, the examples are complete, real programs, rather than isolated garments. All examples have been tested directly from the text, which is in machine-readable form. Besides showing how to make effective use of the language, we have also tried where possible to illustrate useful algorithms and principles of good style and sound design....
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argc arguments argv axpr backslash blanks Brian Kernighan built-in bytes Chapter char character chmod create ctl-d current directory default define Delete diff echo Edition editor egrep errno error etc/passwd example execute Exercise exit status expr fgrep file descriptor file system filenames fleas floating point font fopen format function gram grammar grep hoc.h i-number inode interpreted junk kernel language lexical analyzer line numbers login loop macro mand manual match metacharacters newline nroff NULL operators option overwrite pagesize parsing pattern permissions pipe pointer printf regular expression shell file shell variable signal.h sort specified stack standard input standard output statement stdio.h string symbol table system calls temp terminal troff UNIX system usr/bin write yacc