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OD(1) User Commands OD(1)
NAME
od - dump files in octal and other formats
SYNOPSIS
od [OPTION]... [FILE]...
od [-abcdfilosx]... [FILE] [[+]OFFSET[.][b]]
od --traditional [OPTION]... [FILE] [[+]OFFSET[.][b]
[+][LABEL][.][b]]
DESCRIPTION
Write an unambiguous representation, octal bytes by
default, of FILE to standard output. With more than one
FILE argument, concatenate them in the listed order to
form the input. With no FILE, or when FILE is -, read
standard input.
All arguments to long options are mandatory for short
options.
-A, --address-radix=RADIX
decide how file offsets are printed
-j, --skip-bytes=BYTES
skip BYTES input bytes first
-N, --read-bytes=BYTES
limit dump to BYTES input bytes
-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 traditional form
--help display this help and exit
--version
output version information and exit
Traditional format specifications may be intermixed; they
accumulate:
-a same as -t a, select named characters
-b same as -t o1, select octal bytes
-c same as -t c, select ASCII characters or back-
slash escapes
-d same as -t u2, select unsigned decimal 2-byte
units
-f same as -t fF, select floats
-i same as -t dI, select decimal ints
-l same as -t dL, select decimal longs
-o same as -t o2, select octal 2-byte units
-s same as -t d2, select decimal 2-byte units
-x same as -t x2, select hexadecimal 2-byte units
If first and second call formats both apply, the second
format is assumed if the last operand begins with + or
(if there are 2 operands) a digit. An OFFSET operand
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 hexadeci-
mal; suffixes may be . for octal and b for 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 pre-
fix, 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. --string without a number implies
3. --width 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-coreutils@gnu.org>.
COPYRIGHT
Copyright (C) 2004 Free Software Foundation, Inc.
This is free software; see the source for copying condi-
tions. There is NO warranty; not even for MERCHANTABIL-
ITY 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.
od 5.3.0 November 2004 OD(1)
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