#include
#include
#include
#include
#include
int main() {
int newpid;
printf(“before: mypid is %d\n”, getpid());
if ((newpid = fork()) == -1 )
perror(“fork”);
else if (newpid == 0){
printf(“I am the child %d now sleeping…\n”,getpid());
sleep(10);
exit(47);
}
else{
printf(“I am the parent %d\n”,getpid());
int status;
int child_pid = wait(&status);
printf(“My child %d has terminated\n”,child_pid);
printf(“I have received the status = %x\n”,status);
int child_status = status >> 8;
int signal = status & 0x7F;
int core = status & 0x80;
printf(“Child status = %d Signal = %d Core = %d\n”,child_status, signal, core);
}
}