In this chapter we will discuss:
What is gawk?
Using gawk commands on the command line
How to format text with gawk
How gawk uses regular expressions
Gawk in scripts
Gawk and variables
To make it more fun
As with sed, entire books have been written about various versions of awk. This introduction is far from complete and is only intended for understanding examples in the following chapters. For more information, best start with the documentation that comes with GNU awk: "GAWK: Effective AWK Programming: A User's Guide for GNU Awk".
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