OD(1)

NAME
od - dump files in octal and other formats

SYNOPSIS
od [OPTION]... [FILE]...
od --traditional [FILE] [[+]OFFSET [[+]LABEL]]

DESCRIPTION

Write an unambiguous representation, octal bytes by default, of FILE to standard output. With no FILE, or when FILE is -, read standard input.

-A, --address-radix=RADIX
    decide how file offsets are printed

-j, --skip-bytes=BYTES
    skip BYTES input bytes first on each file

-N, --read-bytes=BYTES
    limit dump to BYTES input bytes per file

-s, --strings[=BYTES]
    output strings of at least BYTES graphic chars

-t, --format=TYPE
    select output format or formats

-v, --output-duplicates
    do not use * to mark line suppression

-w, --width[=BYTES]
    output BYTES bytes per output line

--traditional
    accept arguments in pre-POSIX form

--help
    display this help and exit

--version
    output version information and exit

  Pre-POSIX format specifications may be intermixed, they accumulate:

-a  same as -t a, select named characters

-b  same as -t oC, select octal bytes

-c  same as -t c, select ASCII characters or backslash escapes

-d  same as -t u2, select unsigned decimal shorts

-f  same as -t fF, select floats

-h  same as -t x2, select hexadecimal shorts

-i  same as -t d2, select decimal shorts

-l  same as -t d4, select decimal longs

-o  same as -t o2, select octal shorts

-x  same as -t x2, select hexadecimal shorts

For older syntax (second call format), OFFSET means -j OFFSET. LABEL is the pseudo-address at first byte printed, incremented when dump is progressing. For OFFSET and LABEL, a 0x or 0X prefix indicates hexadecimal, suffixes maybe . for octal and b multiply by 512.

TYPE is made up of one or more of these specifications:

a   named character

c   ASCII character or backslash escape

d[SIZE]
    signed decimal, SIZE bytes per integer

f[SIZE]
    floating point, SIZE bytes per integer

o[SIZE]
    octal, SIZE bytes per integer

u[SIZE]
    unsigned decimal, SIZE bytes per integer

x[SIZE]
    hexadecimal, SIZE bytes per integer

SIZE is a number. For TYPE in doux, SIZE may also be C for sizeof(char), S for sizeof(short), I for sizeof(int) or L for sizeof(long). If TYPE is f, SIZE may also be F for sizeof(float), D for sizeof(double) or L for sizeof(long double).

RADIX is d for decimal, o for octal, x for hexadecimal or n for none. BYTES is hexadecimal with 0x or 0X prefix, it is multiplied by 512 with b suffix, by 1024 with k and by 1048576 with m. Adding a z suffix to any type adds a display of printable characters to the end of each line of output. -s without a number implies 3. -w without a number implies 32. By default, od uses -A o -t d2 -w 16.

AUTHOR
Written by Jim Meyering.

REPORTING BUGS
Report bugs to <bug-textutils@gnu.org>.

COPYRIGHT
Copyright © 1999 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

SEE ALSO
The full documentation for od is maintained as a Texinfo manual. If the info and od programs are properly installed at your site, the command

    info od

should give you access to the complete manual.