OD(1) FSF OD(1)
od - dump files in octal and other formats
od [OPTION]... [FILE]...
od --traditional [FILE] [[+]OFFSET [[+]LABEL]]
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.
decide how file offsets are printed
skip BYTES input bytes first
limit dump to BYTES input bytes
output strings of at least BYTES graphic chars
select output format or formats
do not use * to mark line suppression
output BYTES bytes per output line
accept arguments in traditional form
--help display this help and exit
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 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 may be . for octal and b for mul-
tiply by 512.
TYPE is made up of one or more of these specifications:
a named character
c ASCII character or backslash escape
signed decimal, SIZE bytes per integer
floating point, SIZE bytes per integer
octal, SIZE bytes per integer
unsigned decimal, SIZE bytes per integer
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 hexadeci-
mal 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. --string without a number implies 3. --width without a
number implies 32. By default, od uses -A o -t d2 -w 16.
Written by Jim Meyering.
Report bugs to <email@example.com>.
Copyright (C) 2002 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.
The full documentation for od is maintained as a Texinfo manual. If the info and od pro-
grams are properly installed at your site, the command
should give you access to the complete manual.
od (coreutils) 4.5.3 February 2003 OD(1)