Use homebrew to install gnu coreutils.

MacOS uses traditional Unix tooling, not GNU.

With 30+ years of history, GNU userland is also "traditional". But it's not BSD, and Apple is not a big fan of GPL.

Yeah, but GNU's Not Unix, so... GNU tooling isn't "traditional Unix tooling" =P

It might be traditional, but whatever tradition it is, it isn't Unix =D. I could argue this all day long!

;)

Use Macports, it works better with MacOS and the existing frameworks etc.

Has all the same things like the GNU coreutils etc, they live in /opt/local/bin and don't fight with SEP or users.