HEXDUMP
Hexadecimal file dump


HEXDUMP, a C++ program which prints the contents of a file, byte by byte, in hexadecimal format.

This sort of information can be useful when determining the format of a file, checking for byte-swapping, or other common tasks.

On many computer systems, there's already a program called hexdump, so you have to be careful that you know which program you are running! You can type

which hexdump
to see where the system is going to go if you issue the command. If you don't like what this tells you, you can either invoke the command with path information, or you can rename it, to say "my_hexdump".

Thanks to John McCabe of Rutgers for pointing out and correcting a bug which occurred on some machines if the byte value 0xFF was encountered, 30 January 2008.

Usage:

hexdump filename
reads filename and writes a hexadecimal dump to the standard output.

Sample Output:


        HEXDUMP: Hexadecimal dump of file: box.3ds.

           Address                   Hexadecimal values                  Printable
        -----  -----------------------------------------------  ----------------

            0  4d 4d 53 02 00 00 02 00 0a 00 00 00 03 00 00 00  MMS.............
           16  3d 3d 68 01 00 00 3e 3d 0a 00 00 00 03 00 00 00  ==h...>=........
           32  00 01 0a 00 00 00 00 00 80 3f 00 40 4e 01 00 00  .........?.@N...
           48  42 6f 78 30 31 00 00 41 42 01 00 00 10 41 68 00  Box01..AB....Ah.
           ...
      

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

HEXDUMP is available in a C++ version.

Related programs and data:

hexdump_test

Reference:

  1. Howard Burdick,
    Digital Imaging: Theory and Applications,
    McGraw Hill, 1997,
    ISBN: 0079130593,
    LC: TA1637.B87.

Source Code:


Last revised on 16 March 2020.