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I believe Perl is not part of POSIX. So while you'll see it most places, you won't see it everywhere. For example, you'd bump into strict POSIX compliance in
by PopeDotNinja 6y ago
I believe Perl is not part of POSIX. So while you'll see it most places, you won't see it everywhere. For example, you'd bump into strict POSIX compliance in containers that are kept as small as possible. You probably won't find Perl on a Busybox container installed by default, but I believe that container would still contain awk. I can't verify this myself at the moment.
- jrochkind1 6y agoThanks, that makes sense. That the functioning of awk was part of POXIS was something I just learned from this article, and which surprised me. That POXIS includes specifications of entire languages within it! I guess it makes sense, but wow. But I guess the extensions and advancements to awk being discussed in OP would not be part of POSIX-awk, so not necessarily to be found on a POXIS system, true? Would people using awk for it's POSIX-reliability avoid using new fangled awk innovations?