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Difference Between awk, nawk, gawk and mawk - Baeldung
mawk – pattern scanning and text processing language
mawk(1) - Linux man page
unix - awk, mawk, nawk, gawk... WHAT? - Super User
AWK live editor
The state of the AWK [LWN.net]
AWK - Wikipedia
mawk - implementation of programming language AWK
What is the difference between gawk and mawk with regards to …
Mike Brennan's new development of his original "mawk"