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The GNU Awk User's Guide

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Index Entry Section

~
~ (tilde), ~ operator3.6 Case Sensitivity in Matching
~ (tilde), ~ operator3.8 Using Dynamic Regexps
~ (tilde), ~ operator6.1.3 Regular Expression Constants
~ (tilde), ~ operator6.10 Variable Typing and Comparison Expressions
~ (tilde), ~ operator6.10 Variable Typing and Comparison Expressions
~ (tilde), ~ operator6.14 Operator Precedence (How Operators Nest)
~ (tilde), ~ operator7.1.2 Expressions as Patterns

A
accessing fields4.2 Examining Fields
account information13.5 Reading the User Database
account information13.6 Reading the Group Database
actions7.3 Actions
actions, control statements in7.4 Control Statements in Actions
actions, default2.3 Some Simple Examples
actions, empty2.3 Some Simple Examples
adding, features to gawkC.2.1 Adding New Features
adding, fields4.4 Changing the Contents of a Field
adding, functions to gawkC.3 Adding New Built-in Functions to gawk
advanced features, bufferingAdvanced Notes: Interactive Versus Noninteractive Buffering
advanced features, bufferingAdvanced Notes: Controlling Output Buffering with system
advanced features, close functionAdvanced Notes: Using close's Return Value
advanced features, constants, values ofAdvanced Notes: A Constant's Base Does Not Affect Its Value
advanced features, data files as single recordAdvanced Notes: RS = "\0" Is Not Portable
advanced features, fixed-width data4.6 Reading Fixed-Width Data
advanced features, FNR/NR variablesAdvanced Notes: Changing NR and FNR
advanced features, gawk11. Advanced Features of gawk
advanced features, gawk, BSD portals11.4 Using gawk with BSD Portals
advanced features, gawk, network programming11.3 Using gawk for Network Programming
advanced features, gawk, nondecimal input data11.1 Allowing Nondecimal Input Data
advanced features, gawk, processes, communicating with11.2 Two-Way Communications with Another Process
advanced features, network connections, See Also networks, connections11. Advanced Features of gawk
advanced features, null strings, matchingAdvanced Notes: Matching the Null String
advanced features, operators, precedenceAdvanced Notes: Operator Evaluation Order
advanced features, piping into shAdvanced Notes: Piping into sh
advanced features, regexp constantsAdvanced Notes: Syntactic Ambiguities Between `/=' and Regular Expressions
Aho, AlfredHistory of awk and gawk
Aho, AlfredA.6 Major Contributors to gawk
alarm clock example program14.3.2 An Alarm Clock Program
alarm.awk program14.3.2 An Alarm Clock Program
algorithmsD.1 What a Program Does
Alpha (DEC)The GNU Project and This Book
amazing awk assembler (aaa)Glossary
amazingly workable formatter (awf)Glossary
ambiguity, syntactic: /= operator vs. /=.../ regexp constantAdvanced Notes: Syntactic Ambiguities Between `/=' and Regular Expressions
amigaB.3.1 Installing gawk on an Amiga
ampersand (&), && operator6.11 Boolean Expressions
ampersand (&), &&operator6.14 Operator Precedence (How Operators Nest)
ampersand (&), gsub/gensub/sub functions and9.1.3.1 More About `\' and `&' with sub, gsub, and gensub
AND bitwise operation9.1.6 Bit-Manipulation Functions of gawk
and Boolean-logic operator6.11 Boolean Expressions
and function (gawk)9.1.6 Bit-Manipulation Functions of gawk
ANSIGlossary
archeologistsB.5 Reporting Problems and Bugs
ARGC/ARGV variables7.5.2 Built-in Variables That Convey Information
ARGC/ARGV variables7.5.3 Using ARGC and ARGV
ARGC/ARGV variables, command-line arguments12.3 Other Command-Line Arguments
ARGC/ARGV variables, portability andAdvanced Notes: Portability Issues with `#!'
ARGIND variable7.5.2 Built-in Variables That Convey Information
ARGIND variable, command-line arguments12.3 Other Command-Line Arguments
arguments, command-line7.5.2 Built-in Variables That Convey Information
arguments, command-line7.5.3 Using ARGC and ARGV
arguments, command-line12.3 Other Command-Line Arguments
arguments, command-line, invoking awk12.1 Invoking awk
arguments, in function calls6.13 Function Calls
arguments, processing13.4 Processing Command-Line Options
arguments, retrievingC.3.1 A Minimal Introduction to gawk Internals
arithmetic operators6.5 Arithmetic Operators
arrays8. Arrays in awk
arrays, as parameters to functions9.2.3 Calling User-Defined Functions
arrays, associative8.1 Introduction to Arrays
arrays, associative, clearingC.3.1 A Minimal Introduction to gawk Internals
arrays, associative, library functions and13.1 Naming Library Function Global Variables
arrays, deleting entire contents8.6 The delete Statement
arrays, elements, assigning8.3 Assigning Array Elements
arrays, elements, deleting8.6 The delete Statement
arrays, elements, installingC.3.1 A Minimal Introduction to gawk Internals
arrays, elements, order of8.5 Scanning All Elements of an Array
arrays, elements, referencing8.2 Referring to an Array Element
arrays, elements, retrieving number of9.1.3 String-Manipulation Functions
arrays, for statement and8.5 Scanning All Elements of an Array
arrays, IGNORECASE variable and8.1 Introduction to Arrays
arrays, indexing8.1 Introduction to Arrays
arrays, merging into strings13.2.6 Merging an Array into a String
arrays, multidimensional8.9 Multidimensional Arrays
arrays, multidimensional, scanning8.10 Scanning Multidimensional Arrays
arrays, names of8. Arrays in awk
arrays, scanning8.5 Scanning All Elements of an Array
arrays, sorting8.11 Sorting Array Values and Indices with gawk
arrays, sorting, IGNORECASE variable and8.11 Sorting Array Values and Indices with gawk
arrays, sparse8.1 Introduction to Arrays
arrays, subscripts8.7 Using Numbers to Subscript Arrays
arrays, subscripts, uninitialized variables as8.8 Using Uninitialized Variables as Subscripts
artificial intelligence, gawk andB.1.3 Contents of the gawk Distribution
ASCII13.2.5 Translating Between Characters and Numbers
asort function (gawk)8.11 Sorting Array Values and Indices with gawk
asort function (gawk)9.1.3 String-Manipulation Functions
asort function (gawk), arrays, sorting8.11 Sorting Array Values and Indices with gawk
assert function (C library)13.2.2 Assertions
assert user-defined function13.2.2 Assertions
assertions13.2.2 Assertions
assignment operators6.7 Assignment Expressions
assignment operators, evaluation order6.7 Assignment Expressions
assignment operators, lvalues/rvalues6.7 Assignment Expressions
assignments as filenames13.3.4 Treating Assignments as File Names
assoc_clear internal functionC.3.1 A Minimal Introduction to gawk Internals
assoc_lookup internal functionC.3.1 A Minimal Introduction to gawk Internals
associative arrays8.1 Introduction to Arrays
asterisk (*), * operator, as multiplication operator6.14 Operator Precedence (How Operators Nest)
asterisk (*), * operator, as regexp operator3.3 Regular Expression Operators
asterisk (*), * operator, null strings, matchingAdvanced Notes: Matching the Null String
asterisk (*), ** operator6.5 Arithmetic Operators
asterisk (*), ** operator6.14 Operator Precedence (How Operators Nest)
asterisk (*), ** operator12.2 Command-Line Options
asterisk (*), **= operator6.7 Assignment Expressions
asterisk (*), **= operator6.14 Operator Precedence (How Operators Nest)
asterisk (*), **= operator12.2 Command-Line Options
asterisk (*), *= operator6.7 Assignment Expressions
asterisk (*), *= operator6.14 Operator Precedence (How Operators Nest)
atan2 function9.1.2 Numeric Functions
atariB.4.1 Installing gawk on the Atari ST
awf (amazingly workable formatter) programGlossary
awk language, POSIX version6.7 Assignment Expressions
awk programs2. Getting Started with awk
awk programs2.1.4 Executable awk Programs
awk programs2.4 An Example with Two Rules
awk programs, complex2.8 When to Use awk
awk programs, documenting2.1.5 Comments in awk Programs
awk programs, documenting13.1 Naming Library Function Global Variables
awk programs, examples of14. Practical awk Programs
awk programs, execution of7.4.7 The next Statement
awk programs, internationalizing9.1.7 Using gawk's String-Translation Functions
awk programs, internationalizing10.3 Internationalizing awk Programs
awk programs, lengthy2.1.3 Running Long Programs
awk programs, lengthy, assertions13.2.2 Assertions
awk programs, location of12.2 Command-Line Options
awk programs, one-line examples2.3 Some Simple Examples
awk programs, profiling11.5 Profiling Your awk Programs
awk programs, profiling, enabling12.2 Command-Line Options
awk programs, running2.1 How to Run awk Programs
awk programs, running2.1.3 Running Long Programs
awk programs, running, from shell scripts2.1.1 One-Shot Throwaway awk Programs
awk programs, running, without input files2.1.2 Running awk Without Input Files
awk programs, shell variables in7.2 Using Shell Variables in Programs
awk, function of2. Getting Started with awk
awk, gawk andPreface
awk, gawk and1.1 Using This Book
awk, history ofHistory of awk and gawk
awk, implementation issues, pipes5.6 Redirecting Output of print and printf
awk, implementationsB.6 Other Freely Available awk Implementations
awk, implementations, limits4.8.9 Points to Remember About getline
awk, invoking12.1 Invoking awk
awk, new vs. old1.0 A Rose by Any Other Name
awk, new vs. old, OFMT variable6.4 Conversion of Strings and Numbers
awk, POSIX andPreface
awk, POSIX and, See Also POSIX awkPreface
awk, regexp constants and6.10 Variable Typing and Comparison Expressions
awk, See Also gawkPreface
awk, terms describing1.1 Using This Book
awk, uses forPreface
awk, uses for2. Getting Started with awk
awk, uses for2.8 When to Use awk
awk, versions of1.0 A Rose by Any Other Name
awk, versions ofA.1 Major Changes Between V7 and SVR3.1
awk, versions of, changes between SVR3.1 and SVR4A.2 Changes Between SVR3.1 and SVR4
awk, versions of, changes between SVR4 and POSIX awkA.3 Changes Between SVR4 and POSIX awk
awk, versions of, changes between V7 and SVR3.1A.1 Major Changes Between V7 and SVR3.1
awk, versions of, See Also Bell Laboratories awkA.4 Extensions in the Bell Laboratories awk
awk.h file (internal)C.3.1 A Minimal Introduction to gawk Internals
awka compiler for awkB.6 Other Freely Available awk Implementations
AWKNUM internal typeC.3.1 A Minimal Introduction to gawk Internals
AWKPATH environment variable12.4 The AWKPATH Environment Variable
AWKPATH environment variableB.3.3.3 Using gawk on PC Operating Systems
awkprof.out file11.5 Profiling Your awk Programs
awksed.awk program14.3.8 A Simple Stream Editor
awkvars.out file12.2 Command-Line Options

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