On: “I have [bash] history back to ~2003”

[fps]

I mostly do (MacOS), but:

  $ which ls
  /usr/local/opt/coreutils/libexec/gnubin/ls

I'd say $392 seems like less than I should contribute.

[kbenson → fps]

Well, if it's shipped from Apple as part of their OS (I'm not sure it is from your path), then Apple would be responsible for licensing it.

Which makes me wonder, does Apple have an official stance on supporting open source they use?

[TheCoelacanth → kbenson]

It's not. Default ls on Mac OS X is /bin/ls.

[kbenson → TheCoelacanth]

I figured as much. I'm sure Apple is using some BSD version, possibly modified in-house.

[Kalium → kbenson]

OS X has been based on an amalgamation of several BSD flavors for a while now.

[fps → kbenson]

no, I installed gnu coreutils using homebrew. - /usr/local/opt/ is where homebrew puts installed binaries.