It's the first search result for "awk posix" for me and the fourth for "awk standard".
But yes, sometimes POSIX or the C standard or whatever is too restrictive, but it's still a good starting point for figuring out how to write portable code.
You'll know anything it doesn't cover is implementation-specific, and then either decide it's not worth it to pursue it, or if it is figure out whether the implementations you're targeting support the feature.
But yes, sometimes POSIX or the C standard or whatever is too restrictive, but it's still a good starting point for figuring out how to write portable code.
You'll know anything it doesn't cover is implementation-specific, and then either decide it's not worth it to pursue it, or if it is figure out whether the implementations you're targeting support the feature.