How to use word boundaries in awk without using match() function?

Question

I want to add word boundaries to this awk command:

awk \'{$0=tolower($0)};/wordA/&&/wordB/ { print FILENAME \":\" $0; }\' myfile.txt

Answer 1

This might work for you on Mac OS X:

awk '{$0=tolower($0)};/[[:<:]]wordA[[:>:]]/&&/[[:<:]]wordB[[:>:]]/ { print FILENAME ":" $0; }' myfile.txt

But as it won't work on linux you're best off installing GNU awk.