#include <unistd.h>
#include <fcntl.h>

int main(int argc, char *argv[]){

   int fd1 = open(argv[1], O_RDONLY);
   int fd2 = open(argv[2], O_WRONLY|O_CREAT|O_TRUNC, 0666);

   int c;
   while (read(fd1, &c, 1)>0){
    write(fd2, &c, 1);
   }

   close(fd1);
   close(fd2);


    return 0;
}