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A.5 Extensions in gawk Not in POSIX awk

The GNU implementation, gawk, adds a large number of features. This section lists them in the order they were added to gawk. They can all be disabled with either the --traditional or --posix options (see Options).

Version 2.10 of gawk introduced the following features:

Version 2.13 of gawk introduced the following features:

Version 2.14 of gawk introduced the following feature:

Version 2.15 of gawk introduced the following features:

Version 3.0 of gawk introduced the following features:

Version 3.1 of gawk introduced the following features: