Thanks for pointing that out! I should have mentioned that in the article, and in fact I do much of this type of work on my MacBook.

Hmmm...that might be a good topic for another article.

In the meantime, here are a few packages you can install using HomeBrew (brew install <package>) that help bridge the gap between Mac and Linux for other tools:

bash binutils coreutils gawk gnu-sed gnuplot