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Preface
History
Copying
This Manual
Sample Data Files
Getting Started
Very Simple
Two Rules
More Complex
Running gawk
One-shot
Read Terminal
Long
Executable Scripts
Comments
Statements/Lines
When
Reading Files
Records
Fields
Non-Constant Fields
Changing Fields
Field Separators
Constant Size
Multiple Line
Getline
Close Input
Printing
Print
Print Examples
Output Separators
OFMT
Printf
Basic Printf
Control Letters
Format Modifiers
Printf Examples
Redirection
File/Pipe Redirection
Close Output
Special Files
One-liners
Patterns
Kinds of Patterns
Regexp
Regexp Usage
Regexp Operators
Case-sensitivity
Comparison Patterns
Boolean Patterns
Expression Patterns
Ranges
BEGIN/END
Empty
Actions
Expressions
Constants
Variables
Assignment Options
Arithmetic Ops
Concatenation
Comparison Ops
Boolean Ops
Assignment Ops
Increment Ops
Conversion
Values
Conditional Exp
Function Calls
Precedence
Statements
If Statement
While Statement
Do Statement
For Statement
Break Statement
Continue Statement
Next Statement
Next File Statement
Exit Statement
Arrays
Array Intro
Reference to Elements
Assigning Elements
Array Example
Scanning an Array
Delete
Numeric Array Subscripts
Multi-dimensional
Multi-scanning
Built-in
Calling Built-in
Numeric Functions
String Functions
I/O Functions
Time Functions
User-defined
Definition Syntax
Function Example
Function Caveats
Return Statement
Built-in Variables
User-modified
Auto-set
Command Line
Options
Other Arguments
AWKPATH Variable
Obsolete
Undocumented
Language History
V7/S5R3.1
S5R4
POSIX
POSIX/GNU
Installation
Gawk Distribution
Extracting
Distribution contents
Unix Installation
Quick Installation
Configuration Philosophy
New Configurations
VMS Installation
VMS Compilation
VMS Installation Details
VMS Running
VMS POSIX
MS-DOS Installation
Atari Installation
Gawk Summary
Command Line Summary
Language Summary
Variables/Fields
Fields Summary
Built-in Summary
Arrays Summary
Data Type Summary
Rules Summary
Pattern Summary
Regexp Summary
Actions Summary
Operator Summary
Control Flow Summary
I/O Summary
Printf Summary
Special File Summary
Numeric Functions Summary
String Functions Summary
Time Functions Summary
String Constants Summary
Functions Summary
Historical Features
Sample Program
Bugs
Notes
Compatibility Mode
Future Extensions
Improvements
Glossary
Index
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