The awk utility interprets a special-purpose programming language that makes it possible to handle simple data-reformatting jobs with just a few lines of code.
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The default handling of backslashes in sub() and gsub() has been reverted to the behavior of 3.1, despite having brought standards compliance. The implementation of Rational Range Interpretation has been completed. Failure to set the group is no longer a fatal error. Lots of minor bugs have been fixed. Many portability improvements have been made.
