HEXDUMP(1)

NAME
hexdump - dump a file to stdout in CP/M-like hexadecimal format

SYNOPSIS
hexdump [-V] [-w] [-e] [-c] [-g] [-s] [filename...]

DESCRIPTION

This program provides a facility for obtaining a dump of a binary file to stdout. The default format is a CP/M style haxadecimal dump with byte offset in file, 16 bytes of hex and 16 bytes of alpha representation with '.' for non-printables per line. If no filename is given, hex reads from standard input.

The program accepts the following options to control its output:

-w  set # of bytes dumped per line (default is 16)

-e  display EBCDIC character assignments rather than ASCII

-c  display printable characters as text in-line

-g  don't output mid-page gutter

-s  dump file section

--V print version number and exit

The command line is scanned left-to-right for filenames and options, and each file dumped according to the format defined by preceding options. To turn off an option, precede the letter with a +. Options that take arguments may have them immediately following the option letter or whitespace-separated.

If the command-line arguments include two or more filenames (with - being regarded as a `filename' for standard input), hexdump will emit a one-line header giving the name of the file in front of each input file.

The -s option expects a start offset, optionally followed by a comma-separated count. Each of these should be a decimal or hexadecimal integer (hexadecimal must be prefixed by x or h; leading zeros will be ignored).

The -w option expects a width, formatted as a single decimal or haxadecimal number in the style of an -s option argument. Odd widths turn on the -g option.

NOTE

The definition of EBCDIC used is IBM's ASCII-compatible 96-character SCS set used with Systems Network Architecture (SNA).

AUTHOR

Eric S. Raymond <esr@thyrsus.com>. See my home page at : http://www.catb.org/~esrhttp://www.catb.org/~esr for updates and related resources.