gcc build programs instructions

Installing gcc

First, ensure gcc is installed:

sudo apt update
sudo apt install gcc

Running the program

Here's an example of how to compile and run the simplest 'hello, world' program:

Compile the following content and name it hello.c:

#include <stdio.h>

int main()
{
        printf("hello, world\n");
        return 0;
}

Compile and execute:

debian@lpi4a:~/test$ gcc -g hello.c -o hello

debian@lpi4a:~/test$ ./hello
hello, world

g++ build programs instructions

First, ensure g++ is installed:

sudo apt update
sudo apt install g++

Running the program

Here's an example of how to compile and run the simplest 'hello, world' program:

Compile the following content and name it hello.cpp:

#include <iostream>
using namespace std;

int main()
{
    cout << "Hello, World!\n";
    return 0;
}

Compile and execute:

debian@lpi4a:~/test$ g++ -g hello.cpp -o hello
debian@lpi4a:~/test$ ./hello
Hello, World!

These are the simplest examples of compiling and running programs with gcc/g++. For more complex applications, please refer to the corresponding system programming manuals.