Manual page and help for awk and gawk linux commands. Gawk is the implementation of the AWK programming language by the GNU Project. It conforms to the standard POSIX 1003.2 Command Language And Utilities language definition. On the other hand, this version is based on a description of The AWK Programming Language written by Aho, Kernighan and Weinberger; with additional features included in UNIX awk system V Release 4.