#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <iostream.h>

int main(int argc, char *argv[])
{
   int  fd;
   char line[100] = "ABCD\tEFGH\n";
   int  n;

   fd = open("outFile", O_WRONLY|O_CREAT|O_TRUNC, 0644);

   n = write(fd, &line[0], 10);
   n = write(fd, &line[0], 5);
   n = write(fd, &line[0], 10);

   close(fd);
}