awk Programming

Awk is a filter implementing a programming language optimized for processing text files containing data in fields. It is simple enough to use in one-liners and capable enough for general purpose programming.

Awk reads the input line by line and breaks each input line into fields which are available as variables $1, $2, ... within the awk code. After each input line is read, awk executes statements appropriate for the line.

• Simple awk Scripts

• Control Flow

• awk Patterns and Expressions

• Variables

• Arrays

• Array for loop

• Built-in Variables

• Built-in Functions

• print and printf

• A little more awk