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

To compile C or C++ programs, there is a common command:

1. make filename

2. ./filename

make will build your source file into an executable file with the same name. But if you want to use the standard way, You could use the gcc compiler to build C programs & g++ for c++

For C:

gcc filename.c

./a.out

For C++:

g++ filename.cpp

./a.out

Answer 2

Add following to get best warnings, you will not regret it. If you can, compile WISE (warning is error)

- Wall -pedantic -Weffc++ -Werror

Answer 3

This is the command that works on all Unix machines... I use it on Linux/Ubuntu, but it works in OS X as well. Type the following command in Terminal.app.

$ g++ -o lab21 iterative.cpp

-o is the letter O not zero

lab21 will be your executable file

iterative.cpp is your c++ file

After you run that command type the following in terminal to run your program:

$ ./lab21

Answer 4

Two steps for me:

first:

make foo

then:

./foo

Answer 5

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

Answer 6

gcc main.cpp -o main.out  
./main.out