HEXDUMP(1)

NAME
hexdump - print input as hexadecimal

SYNOPSIS
hexdump [-bCcdovx] [-n NUMBER] [-s NUMBER] [file ...]

hexdump [-r] [file ...]

DESCRIPTION
Input files are taken as a single stream of data and formatted as hexadecimal. Standard input is used if no file arguments are provided. Duplicate lines of input are filtered by default. A '*' character is printed to indicate one or more duplicate input lines.

  OPTIONS
The following options are available:

-b  One-byte octal output.

-C  Output canonical hex+ASCII. Each line begins with an offset number followed by a space-separated list of 16 hex bytes. Printable input characters are listed between two '|' characters.

-c  Output a space-separated list of ASCII characters. Non-print characters are listed in octal, or a C-escape code.

-d  Format output as two-byte decimal.

-n NUMBER
    Terminate the process after reading a set NUMBER of input bytes. The number argument must be given in decimal. Input skipped by the -s option is not counted.

-o  Format output as two-byte octal.

-r  Revert a hex dump back to binary. Input is expected to be formatted as canonical hex+ASCII. The initial offset address and the ASCII suffix of each line are ignored. Input lines may have zero or more hex bytes; running over 16 bytes is supported. Spaces between hex digits are ignored. An odd number of hex digits on a line results in an error.

    Setting -r causes all other options. It is possible to specify multiple input files.

-s NUMBER
    Skip a set NUMBER of bytes at the beginning of input. The number argument must be given in decimal. The offset number printed on output is advanced to reflect the skipped bytes.

-v  Duplicate lines of output are displayed.

-x  Format output as two-byte hexadecimal. This is the default.

BUGS
No option exists for setting an output filename, so the -r option will write binary data to a terminal if output is not redirected.

AUTHOR
Written by Michael Mikonos.

COPYRIGHT
Copyright (c) 2023 Michael Mikonos.

This code is licensed under the Artistic License 2.