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6.4. Summary

The gawk utility interprets a special-purpose programming language, handling simple data-reformatting jobs with just a few lines of code. It is the free version of the general UNIX awk command.

This tools reads lines of input data and can easily recognize columned output. The print program is the most common for filtering and formatting defined fields.

On-the-fly variable declaration is straightforward and allows for simple calculation of sums, statistics and other operations on the processed input stream. Variables and commands can be put in awk scripts for background processing.

 
 
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