How can I find the header files of the C programming language in Linux?

Question

When I write C programs in Linux, and then compile them using gcc, I am always curious about where those header files are. For example, where stdio.h is. More g

Answer 1

One approach, if you know the name of the include file, would be to use find:

cd /
find . -name "stdio.h"
find . -name "std*.h"

That'll take a while as it goes through every directory.