#include <stdio.h>
#include <math.h>
#include <fcntl.h>
#include <string.h>

#include <sys/types.h>

main(argc,argv)
int argc;
char *argv[];
{
   unsigned char b;
   int fd, i;

   i=0;
   if (argc!=2) exit(-1);
   fd = open(argv[1],O_RDONLY|O_BINARY);
   if (fd == NULL) exit(-2);
   while (read(fd,&b,1) != 0) {
      printf("%2d   %2x %3d %c\n",i++, b,  b,(char) b);
   }
}