I fully agree with the author here. The good old Unix philosophy of designing simple tools that are doing only one thing right has proven extremely useful in t

I fully agree with the author here. The good old Unix philosophy of designing simple tools that are doing only one thing right has proven extremely useful in the context of using the Shell as a scripting interface. Composability is paramount to be able to glue small cogs together to quickly build a larger machine for ones needs. But this way of thinking should not apply to everything, especially not when the tool itself is designed to be used a direct interface with the user (like a Shell).