For make there is much better option than googling: https://www.gnu.org/software/make/manual/make.html https://www.gnu.org/software/make/manual/make.html and hi

For make there is much better option than googling: https://www.gnu.org/software/make/manual/make.html https://www.gnu.org/software/make/manual/make.html and hit Ctrl+F. You can even easily search for things like $<. Nothing else is really needed. And for BSD make the man page is all you need.