From TFA, the author mentions things like `date` having different args on Mac (BSD utils) and Linux (GNU utils). While true, you can just install GNU utils on a Mac, and get access to all of those, prefixed by g (e.g. GNU sed is launched with gsed).
Linuxify [0] is a decent shell script that does all of this for you.
Linuxify [0] is a decent shell script that does all of this for you.
[0]: https://github.com/darksonic37/linuxify