int main()
{
        int i,pid;

        printf("pid : %d \n",pid);

        pid=fork();

        printf("pid : %d \n",pid);

        printf("\n");

        if(pid==0)
        {
                printf("Child starts\n");

                for(i=0;i<5;i++)
                {
                        printf("i : %d\n",i);
                        printf("\n");
                }
                printf("Child ends\n");
        }
        else
        {
                printf("\nBefore wait\n");
                printf("getpid : %d\n",getpid());
                pid=wait(0);
                printf("\npid : %d\n",pid);
                printf("After wait\n");
                printf("Parent\n");
                printf("getpid : %d\n",getpid());
        }
}



















Output:

[04mca8@LINTEL pp]$ ./a.out
pid : 8884256
pid : 0

Child starts
i : 0

i : 1

i : 2

i : 3

i : 4

Child ends
pid : 23325


Before wait
getpid : 23324

pid : 23325
After wait
Parent
getpid : 23324