#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdio.h>


int main()
{
   printf("exec3 is starting to execute.\n" ) ; 

    pid_t pid;
    switch(  pid = fork()  )
    {
        case -1:
            printf("fork failed");
            break;
        case 0:  //Child
            printf("\n In the child process. About to run exec1");
            fflush(stdout);
            char  *args[] = { "./exec1" , NULL } ;
            execv( "./exec1" , args  ) ; 
 
            break;
        default:    //parent
             printf("exec3 is ending.\n" ) ; 
             fflush(stdout);
    }

   
    return 0;
}