Introduction to awk
What is awk and Why?
How awk Programs Work
Running awk Programs
Examples

awk Patterns
Summary and Patterns
BEGIN and END
Expressions
String-Matching Patterns
Extended REs in awk
Range Patterns

awk Actions
Summary of Statements
Expressions
Operators
Flow Control
More Flow Control
The next, break, continue, and exit statements
Built-in Variables
 awk Input andOutput
Formatted Output with printf
Output into Files
Output into Pipes
Input Separators
Multi-Line Records
The getline Function
More getline
Command Line Parameters

awk Functions
Built-In Arithmetic Functions
Built-In String Functions
More String Functions
User Defined Functions
Local Variables

awk Arrays
Arrays
Associative Arrays
The Array for Statement
The Array in Operator
Deleting Array Elements
The Split Function
Multi-Dimensional Arrays
Command Line Parameter Passing