All features which are there in AWK are available as default in GAWK. In addition to these features, there are some other features of GAWK that essentially require a mention—they are covered in this section. These are not interrelated, so moving from one feature to another will be like picking up a random tool from a box filled with essential utilities.
Things you don't know about GAWK
Reading non-decimal input
The non-decimal values are like octal numbers or hexadecimal numbers. We cannot use these values to print their decimal equivalent with AWK; GAWK provides the option, --non-decimal-data, to print non-decimal values in the output. Octal values need to be prefixed with 0 and hexadecimal values need to be prefixed...
