Running C++ Programs

A Hello World Program

Here is a simple C++ program that prints "Hello, World!" to the console:

hello.cpp

#include <iostream>
 
int main() {
    std::cout << "Hello, World!" << std::endl;
    return 0;
}

To compile and run this program, follow the steps below.

Save the program to a file named hello.cpp.

To compile the program, you can use the following command:

g++ hello.cpp -o hello

This command will compile the hello.cpp file and generate an executable file named hello.

After compiling the program, you can run the executable by executing the following command:

./hello

This will print Hello, World! to the console.

If you have multiple C++ files that you want to compile, you can use the following command:

To compile multiple C++ files with GCC, you can use the following command:

g++ file1.cpp file2.cpp -o output

This command will compile file1.cpp and file2.cpp and generate an executable file named output.

After compiling the files, you can run the executable by executing the following command:

./output