> What makes the CLI interface to the compiler more essential of an abstraction than a GUI interface to the compiler? Just that it is simpler It's not simpler!

> What makes the CLI interface to the compiler more essential of an abstraction than a GUI interface to the compiler? Just that it is simpler It's not simpler! It's way more confusing to figure out that your make file told your compiler to run a command with some unknown set of obscure options that are causing an error than to just have the IDE pop a dialog and tell you in plain words, or better, not even let you set an option incorrectly in the first place.