Hexdump

Hexdump is a command-line tool used to show the raw bytes of a file in various ways including hexadecimal, available on Linux, FreeBDS, OS X, and other platforms. Hexdump is not part of traditional Unix systems or GNU commands.

Options
Command-line options aka switches of hexdump:
 * -b: One-byte octal display.
 * -c: One-byte character display.
 * -C: Canonical hex+ASCII display.
 * -d: Two-byte decimal display.
 * -e format_string: Format the data as specified in the format string.
 * -f format_file: Use newline-separated format strings from the file.
 * -n length: Process only length bytes of input.
 * -o: Two-byte octal display.
 * -s offset: Ignore offset bytes from the beginning of the input.
 * -v: Use unabbreviated display rather than displaying some sequences merely as *.
 * -x: Two-byte hexadecimal display.

Examples
Examples of hexdump use:
 * hexdump -v -e '"" 1/1 "%02X" " "' myfile
 * Shows the bytes in hexadecimal using capitalized letters, each byte separated by a space. The first "" specifies and empty prefix, while the last " " specifies a single-space suffix.

Versions
A different version of hexdump for MS Windows is available from GnuWin32 project.