Index: R – Z

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	Index Entry	Section

R
	range expression	3.2 Character Classes and Bracket Expressions
	recursive search	2.1.6 File and Directory Selection
	regular expressions	3. Regular Expressions
	return status	2.3 Exit Status
	`rv GREP_COLORS capability`	2.2 Environment Variables

S
	searching directory trees	2.1.6 File and Directory Selection
	searching directory trees	2.1.6 File and Directory Selection
	searching directory trees	2.1.6 File and Directory Selection
	searching directory trees	2.1.6 File and Directory Selection
	searching for a pattern	1. Introduction
	`sl GREP_COLORS capability`	2.2 Environment Variables
	`space character class`	3.2 Character Classes and Bracket Expressions
	space characters	3.2 Character Classes and Bracket Expressions
	subexpression	3.5 Back-references and Subexpressions
	suppress binary data	2.1.6 File and Directory Selection
	suppress error messages	2.1.3 General Output Control

T
	tab-aligned content lines	2.1.4 Output Line Prefix Control
	translation of message language	2.2 Environment Variables

U
	`upper character class`	3.2 Character Classes and Bracket Expressions
	upper-case letters	3.2 Character Classes and Bracket Expressions
	usage summary, printing	2.1.1 Generic Program Information
	usage, examples	4. Usage
	using `grep`, Q&A	4. Usage

V
	variants of `gerp`	2.4 `grep` Programs
	version, printing	2.1.1 Generic Program Information

W
	whitespace characters	3.2 Character Classes and Bracket Expressions
	with filename prefix	2.1.4 Output Line Prefix Control

X
	`xdigit character class`	3.2 Character Classes and Bracket Expressions
	xdigit class	3.2 Character Classes and Bracket Expressions

Z
	zero-terminated file names	2.1.4 Output Line Prefix Control
	zero-terminated lines	2.1.7 Other Options

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