Build Awesome Command-Line Applications in Ruby 2

Chapter 5Delight Casual Users

So far, we’ve learned how to write easy-to-use, helpful command-line apps that interoperate well with other apps and systems. But in the previous chapter, we saw how subjective design decisions can be when we had to decide which output format of our to-do app would be the default. Choosing default values and behavior—as well as naming our commands, options, and arguments—is not as straightforward as using exit codes or sending output to the right place. These choices are design decisions that can profoundly affect how a user interacts with your app. Each decision nudges the user in one direction or the other, making some tasks simpler for the user to execute and some more difficult. In short, the right design decision ...