Part I describes the awk language and gawk program in detail. It starts with the basics, and continues through all of the features of awk. Included also are many, but not all, of the features of gawk. This part contains the following chapters:
awk
gawk
Chapter 1, Getting Started with awk
Chapter 2, Running awk and gawk
Chapter 3, Regular Expressions
Chapter 4, Reading Input Files
Chapter 5, Printing Output
Chapter 6, Expressions
Chapter 7, Patterns, Actions, and Variables
Chapter 8, Arrays in awk
Chapter 9, Functions
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