This was my first thought as well, I found the examples of `ls` and `grep` amusing in this context. I think the author's point is: instead of exposing `grep`/`

This was my first thought as well, I found the examples of `ls` and `grep` amusing in this context. I think the author's point is: instead of exposing `grep`/`head`/`awk` as their own distinct tools, expose a single tool for writing the language. They chose Python but one could just as easily choose bash.