GNU awk

GNU awk (or gawk) is an open source command-line utility that interprets a special-purpose programming language.

The awk utility makes it possible to manipulate simple data-reformatting jobs with just a few lines of code.

What is new in this release:

• 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.

What is new in version 3.1.7:

• Lots of enhancements and bugfixes were made.