How to compile and run C/C++ in a Unix console/Mac terminal?

Question

How can I compile/run C or C++ in Unix console or a Mac terminal?

(I know it, forget it, and relearn it again. Time to write it down.)

Answer 1

In order to compile and run a cpp source code from Mac terminal one needs to do the following:

1. If the path of cpp file is somePath/fileName.cpp, first go the directory with path somePath
2. To compile fileName.cpp, type c++ fileName.cpp -o fileName
3. To run the program, type ./fileName