#include <stdio.h>
#include <unistd.h>
#include <sys/wait.h> // For wait()
 
int main() {
    pid_t pid;
 
    pid = fork(); // Create a new process
 
    if (pid < 0) {
        // fork() failed
        perror("fork failed");
        return 1;
    }
    else if (pid == 0) {
        // Child process
        printf("I am a child, my parent process is %d\n", getppid());
    }
    else {
        // Parent process
        printf("I am parent process, my id is %d\n", getpid());
        wait(NULL); // Wait for child to finish
    }
 
    return 0;
}
 

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