GNU Awk (gawk), version 3.0.3

Gawk is designed to be upwardly compatible with the System V Release 4
awk.  It is compliant with draft 11 of POSIX 1003.2.

GNU gawk has many advantages, including:
        faster
        uses less memory
        graceful handling of stdout, stderr
        subroutines
        additional instrinsic functions
        programmer can specify case insensitive pattern matching