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Index EntrySection

-
--Other Options
--after-contextContext Line Control
--basic-regexpgrep Programs
--before-contextContext Line Control
--binaryOther Options
--binary-filesFile and Directory Selection
--byte-offsetOutput Line Prefix Control
--colorGeneral Output Control
--colourGeneral Output Control
--contextContext Line Control
--countGeneral Output Control
--dereference-recursiveFile and Directory Selection
--devicesFile and Directory Selection
--directoriesFile and Directory Selection
--excludeFile and Directory Selection
--exclude-dirFile and Directory Selection
--exclude-fromFile and Directory Selection
--extended-regexpgrep Programs
--fileMatching Control
--files-with-matchesGeneral Output Control
--files-without-matchGeneral Output Control
--fixed-stringsgrep Programs
--group-separatorContext Line Control
--group-separatorContext Line Control
--helpGeneric Program Information
--ignore-caseMatching Control
--includeFile and Directory Selection
--initial-tabOutput Line Prefix Control
--invert-matchMatching Control
--labelOutput Line Prefix Control
--line-bufferedOther Options
--line-numberOutput Line Prefix Control
--line-regexpMatching Control
--max-countGeneral Output Control
--no-filenameOutput Line Prefix Control
--no-ignore-caseMatching Control
--no-messagesGeneral Output Control
--nullOutput Line Prefix Control
--null-dataOther Options
--only-matchingGeneral Output Control
--perl-regexpgrep Programs
--quietGeneral Output Control
--recursiveFile and Directory Selection
--regexp=patternsMatching Control
--silentGeneral Output Control
--textFile and Directory Selection
--versionGeneric Program Information
--with-filenameOutput Line Prefix Control
--word-regexpMatching Control
-AContext Line Control
-aFile and Directory Selection
-bOutput Line Prefix Control
-BContext Line Control
-cGeneral Output Control
-CContext Line Control
-DFile and Directory Selection
-dFile and Directory Selection
-eMatching Control
-Egrep Programs
-fMatching Control
-Fgrep Programs
-Ggrep Programs
-HOutput Line Prefix Control
-hOutput Line Prefix Control
-iMatching Control
-LGeneral Output Control
-lGeneral Output Control
-mGeneral Output Control
-nOutput Line Prefix Control
-numContext Line Control
-oGeneral Output Control
-Pgrep Programs
-qGeneral Output Control
-rFile and Directory Selection
-RFile and Directory Selection
-sGeneral Output Control
-TOutput Line Prefix Control
-UOther Options
-VGeneric Program Information
-vMatching Control
-wMatching Control
-xMatching Control
-yMatching Control
-ZOutput Line Prefix Control
-zOther Options

?
?Fundamental Structure

.
.Fundamental Structure

{
{,m}Fundamental Structure
{n,}Fundamental Structure
{n,m}Fundamental Structure
{n}Fundamental Structure

*
*Fundamental Structure

+
+Fundamental Structure

A
after contextContext Line Control
alnum character classCharacter Classes and Bracket Expressions
alpha character classCharacter Classes and Bracket Expressions
alphabetic charactersCharacter Classes and Bracket Expressions
alphanumeric charactersCharacter Classes and Bracket Expressions
alternatives in regular expressionsFundamental Structure
anchoringAnchoring
asteriskFundamental Structure

B
back-referenceBack-references and Subexpressions
back-referencesPerformance
backslashSpecial Backslash Expressions
basic regular expressionsBasic vs Extended
before contextContext Line Control
binary filesFile and Directory Selection
binary filesFile and Directory Selection
binary I/OOther Options
blank character classCharacter Classes and Bracket Expressions
blank charactersCharacter Classes and Bracket Expressions
bn GREP_COLORS capabilityEnvironment Variables
braces, first argument omittedFundamental Structure
braces, one argumentFundamental Structure
braces, second argument omittedFundamental Structure
braces, two argumentsFundamental Structure
bracket expressionCharacter Classes and Bracket Expressions
Bugs, knownKnown Bugs
bugs, reportingReporting Bugs
byte offsetOutput Line Prefix Control

C
case insensitive searchMatching Control
case insensitive searchPerformance
changing name of standard inputOutput Line Prefix Control
character classCharacter Classes and Bracket Expressions
character classesCharacter Classes and Bracket Expressions
character encodingCharacter Encoding
character typeEnvironment Variables
classes of charactersCharacter Classes and Bracket Expressions
cntrl character classCharacter Classes and Bracket Expressions
context linesGeneral Output Control
context linesContext Line Control
context linesContext Line Control
context lines, after matchContext Line Control
context lines, before matchContext Line Control
control charactersCharacter Classes and Bracket Expressions
copyingCopying
counting linesGeneral Output Control
cx GREP_COLORS capabilityEnvironment Variables

D
device searchFile and Directory Selection
digit character classCharacter Classes and Bracket Expressions
digit charactersCharacter Classes and Bracket Expressions
directory searchFile and Directory Selection
dotFundamental Structure

E
encoding errorEnvironment Variables
environment variablesEnvironment Variables
exclude directoriesFile and Directory Selection
exclude filesFile and Directory Selection
exclude filesFile and Directory Selection
exit statusExit Status

F
FAQ about grep usageUsage
files which don’t matchGeneral Output Control
fn GREP_COLORS capabilityEnvironment Variables
fn GREP_COLORS capabilityEnvironment Variables

G
graph character classCharacter Classes and Bracket Expressions
graphic charactersCharacter Classes and Bracket Expressions
grep programsgrep Programs
GREP_COLOR environment variableEnvironment Variables
GREP_COLORS environment variableEnvironment Variables
group separatorContext Line Control
group separatorContext Line Control

H
hexadecimal digitsCharacter Classes and Bracket Expressions
highlight markersEnvironment Variables
highlight markersEnvironment Variables
highlight, color, colourGeneral Output Control
holes in filesPerformance

I
include filesFile and Directory Selection
interval expressionsFundamental Structure
interval expressionsPerformance
invalid regular expressionsProblematic Expressions
invert matchingMatching Control

L
LANG environment variableEnvironment Variables
LANG environment variableEnvironment Variables
LANG environment variableEnvironment Variables
LANG environment variableEnvironment Variables
LANGUAGE environment variableEnvironment Variables
LANGUAGE environment variableEnvironment Variables
language of messagesEnvironment Variables
LC_ALL environment variableEnvironment Variables
LC_ALL environment variableEnvironment Variables
LC_ALL environment variableEnvironment Variables
LC_ALL environment variableEnvironment Variables
LC_COLLATE environment variableEnvironment Variables
LC_CTYPE environment variableEnvironment Variables
LC_MESSAGES environment variableEnvironment Variables
LC_MESSAGES environment variableEnvironment Variables
line bufferingOther Options
line numberingOutput Line Prefix Control
ln GREP_COLORS capabilityEnvironment Variables
localesPerformance
lower character classCharacter Classes and Bracket Expressions
lower-case lettersCharacter Classes and Bracket Expressions

M
match expression at most m timesFundamental Structure
match expression at most onceFundamental Structure
match expression from n to m timesFundamental Structure
match expression n or more timesFundamental Structure
match expression n timesFundamental Structure
match expression one or more timesFundamental Structure
match expression zero or more timesFundamental Structure
match the whole lineMatching Control
matching basic regular expressionsgrep Programs
matching extended regular expressionsgrep Programs
matching fixed stringsgrep Programs
matching Perl-compatible regular expressionsgrep Programs
matching whole wordsMatching Control
max-countGeneral Output Control
mc GREP_COLORS capabilityEnvironment Variables
message languageEnvironment Variables
ms GREP_COLORS capabilityEnvironment Variables
MS-Windows binary I/OOther Options
mt GREP_COLORS capabilityEnvironment Variables

N
names of matching filesGeneral Output Control
national language supportEnvironment Variables
national language supportEnvironment Variables
ne GREP_COLORS capabilityEnvironment Variables
NLSEnvironment Variables
no filename prefixOutput Line Prefix Control
non-ASCII matchingMatching Non-ASCII
non-printable matchingMatching Non-ASCII
null characterEnvironment Variables
numeric charactersCharacter Classes and Bracket Expressions

O
only matchingGeneral Output Control
option delimiterOther Options
ordinary charactersFundamental Structure

P
patterns from fileMatching Control
patterns optionMatching Control
performancePerformance
periodFundamental Structure
pipelines and readingPerformance
plus signFundamental Structure
POSIXLY_CORRECT environment variableEnvironment Variables
print character classCharacter Classes and Bracket Expressions
print non-matching linesMatching Control
printable charactersCharacter Classes and Bracket Expressions
punct character classCharacter Classes and Bracket Expressions
punctuation charactersCharacter Classes and Bracket Expressions

Q
question markFundamental Structure
quiet, silentGeneral Output Control

R
range expressionCharacter Classes and Bracket Expressions
recursive searchFile and Directory Selection
recursive searchFile and Directory Selection
regular expressionsRegular Expressions
return statusExit Status
rv GREP_COLORS capabilityEnvironment Variables

S
searching directory treesFile and Directory Selection
searching directory treesFile and Directory Selection
searching directory treesFile and Directory Selection
searching directory treesFile and Directory Selection
searching directory treesFile and Directory Selection
searching for patternsIntroduction
sl GREP_COLORS capabilityEnvironment Variables
space character classCharacter Classes and Bracket Expressions
space charactersCharacter Classes and Bracket Expressions
special charactersFundamental Structure
subexpressionBack-references and Subexpressions
suppress binary dataFile and Directory Selection
suppress error messagesGeneral Output Control
symbolic linksFile and Directory Selection
symbolic linksFile and Directory Selection
symbolic linksFile and Directory Selection

T
tab-aligned content linesOutput Line Prefix Control
TERM environment variableEnvironment Variables
translation of message languageEnvironment Variables

U
unspecified behavior in regular expressionsProblematic Expressions
upper character classCharacter Classes and Bracket Expressions
upper-case lettersCharacter Classes and Bracket Expressions
usage summary, printingGeneric Program Information
usage, examplesUsage
using grep, Q&AUsage

V
variants of grepgrep Programs
version, printingGeneric Program Information

W
whitespace charactersCharacter Classes and Bracket Expressions
with filename prefixOutput Line Prefix Control

X
xdigit character classCharacter Classes and Bracket Expressions
xdigit classCharacter Classes and Bracket Expressions

Z
zero-terminated file namesOutput Line Prefix Control
zero-terminated linesOther Options