Having relied heavily on the (unofficial, non-GNU) gawk manpage extensively (it's quite good), I instantly started learning very useful features reading the GNU docs. (I still need to fully internalise those). Yes, the full manual is very much better than the manpage.
(Also recommend The AWK Programming Language mentioned here, though I'd suggest the GNU manual adds to that as well.)
Having relied heavily on the (unofficial, non-GNU) gawk manpage extensively (it's quite good), I instantly started learning very useful features reading the GNU docs. (I still need to fully internalise those). Yes, the full manual is very much better than the manpage.
(Also recommend The AWK Programming Language mentioned here, though I'd suggest the GNU manual adds to that as well.)