i like how the very example he uses is something that is a huge hassle to do in any visual UI as soon as the number of files in question is more than, say 300.

i like how the very example he uses is something that is a huge hassle to do in any visual UI as soon as the number of files in question is more than, say 300. partisan of visual programming have managed to make easy tasks trivial but i have yet to see a visual toolset that does not make slightly complex tasks tedious and difficult tasks impossible. Just try porting any visual studio project to a different platform and see instead of a sed one liner to edit your makefile you need to open 72000 dialog to change the name of one header file.