All about AWK
The GNU version, Gawk
AWK tutorials, articles and books
Eric Pement’s awk intro and list of handy one-liners
“torsite.net/tsawk.html">An Awk Primer"
The original “awl” book by Alfred V. Aho, Brian W. Kernighan and Peter J. Weinberger: The AWK Programming Language
Free online book: Gawk: Effective AWK Programming
ToC for another online awk book
a list of awk scripts