Summary
With the help of these readings and libraries, you can take your CLI applications to the next level and build some quite impressive and useful ones. I am eager to see what you will create. Do not hesitate to let me know.
One more thing: this list is not frozen in time. It is alive and you should keep it alive. How? By continually revisiting it and updating it as technology and trends evolve. I am passing this mission on to you.