Tiny fork example

.bash_history

2013-05-15 11:06:20 mikeboers@faraday: ~/Desktop
$ gcc fork.c 

2013-05-15 11:07:25 mikeboers@faraday: ~/Desktop
$ ./a.out 
Before the fork.
I am the parent of 9761.
I am the child.

fork.c

#include <unistd.h>
#include <stdio.h>

int main(int argc, char **argv) {
    printf("Before the fork.\n");
    int pid = fork();
    if (pid) {
        printf("I am the parent of %d.\n", pid);
    } else {
        printf("I am the child.\n");
    }
    return 0;
}