I agree it's definitely possible but I wouldn't call it "easy" or describe it as "just build...". If it were that that simple it would exist already - and possibly it does. In my DCL days - Digital Command Language, which I just remembered was the actual name of the VMS shell language - I had an elaborate set of shortcuts in my .bashrc equivalent, whatever it was called. But I don't know bash anywhere near enough to take on creating a skin for it. Just making cheat sheets and gradually memorizing what I use most seems more realistic - and would be an easier process if the commands and options were more natural to begin with.