1OD(1)                            User Commands                           OD(1)
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NAME

6       od - dump files in octal and other formats
7

SYNOPSIS

9       od [OPTION]... [FILE]...
10       od [-abcdfilosx]... [FILE] [[+]OFFSET[.][b]]
11       od --traditional [OPTION]... [FILE] [[+]OFFSET[.][b] [+][LABEL][.][b]]
12

DESCRIPTION

14       Write an unambiguous representation, octal bytes by default, of FILE to
15       standard output.  With more than one FILE argument, concatenate them in
16       the  listed  order to form the input.  With no FILE, or when FILE is -,
17       read standard input.
18
19       All arguments to long options are mandatory for short options.
20
21       -A, --address-radix=RADIX
22              decide how file offsets are printed
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24       -j, --skip-bytes=BYTES
25              skip BYTES input bytes first
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27       -N, --read-bytes=BYTES
28              limit dump to BYTES input bytes
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30       -S, --strings[=BYTES]
31              output strings of at least BYTES graphic chars
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33       -t, --format=TYPE
34              select output format or formats
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36       -v, --output-duplicates
37              do not use * to mark line suppression
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39       -w, --width[=BYTES]
40              output BYTES bytes per output line
41
42       --traditional
43              accept arguments in traditional form
44
45       --help display this help and exit
46
47       --version
48              output version information and exit
49
50   Traditional format specifications may be intermixed; they accumulate:
51       -a     same as -t a,  select named characters, ignoring high-order bit
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53       -b     same as -t o1, select octal bytes
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55       -c     same as -t c,  select ASCII characters or backslash escapes
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57       -d     same as -t u2, select unsigned decimal 2-byte units
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59       -f     same as -t fF, select floats
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61       -i     same as -t dI, select decimal ints
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63       -l     same as -t dL, select decimal longs
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65       -o     same as -t o2, select octal 2-byte units
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67       -s     same as -t d2, select decimal 2-byte units
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69       -x     same as -t x2, select hexadecimal 2-byte units
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71       If first and second call formats  both  apply,  the  second  format  is
72       assumed  if the last operand begins with + or (if there are 2 operands)
73       a  digit.   An  OFFSET  operand  means  -j  OFFSET.    LABEL   is   the
74       pseudo-address  at  first  byte  printed, incremented when dump is pro‐
75       gressing.  For OFFSET and LABEL, a 0x or 0X prefix indicates  hexadeci‐
76       mal; suffixes may be . for octal and b for multiply by 512.
77
78       TYPE is made up of one or more of these specifications:
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80       a      named character, ignoring high-order bit
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82       c      ASCII character or backslash escape
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84       d[SIZE]
85              signed decimal, SIZE bytes per integer
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87       f[SIZE]
88              floating point, SIZE bytes per integer
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90       o[SIZE]
91              octal, SIZE bytes per integer
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93       u[SIZE]
94              unsigned decimal, SIZE bytes per integer
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96       x[SIZE]
97              hexadecimal, SIZE bytes per integer
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99       SIZE  is  a  number.   For  TYPE  in  doux,  SIZE  may  also  be  C for
100       sizeof(char),  S  for  sizeof(short),  I  for  sizeof(int)  or  L   for
101       sizeof(long).   If  TYPE  is f, SIZE may also be F for sizeof(float), D
102       for sizeof(double) or L for sizeof(long double).
103
104       RADIX is d for decimal, o for octal, x for hexadecimal or n  for  none.
105       BYTES  is  hexadecimal  with 0x or 0X prefix, and may have a multiplier
106       suffix: b  512,  kB  1000,  K  1024,  MB  1000*1000,  M  1024*1024,  GB
107       1000*1000*1000,  G 1024*1024*1024, and so on for T, P, E, Z, Y.  Adding
108       a z suffix to any type displays printable characters at the end of each
109       output  line.   Option  --string  without  a  number  implies 3; option
110       --width without a number implies 32.  By default, od uses -A  o  -t  oS
111       -w16.
112

AUTHOR

114       Written by Jim Meyering.
115

REPORTING BUGS

117       Report od bugs to bug-coreutils@gnu.org
118       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
119       General help using GNU software: <http://www.gnu.org/gethelp/>
120       Report od translation bugs to <http://translationproject.org/team/>
121
123       Copyright  ©  2010  Free Software Foundation, Inc.  License GPLv3+: GNU
124       GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
125       This is free software: you are free  to  change  and  redistribute  it.
126       There is NO WARRANTY, to the extent permitted by law.
127

SEE ALSO

129       The  full  documentation  for od is maintained as a Texinfo manual.  If
130       the info and od programs are properly installed at your site, the  com‐
131       mand
132
133              info coreutils 'od invocation'
134
135       should give you access to the complete manual.
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139GNU coreutils 8.4                  June 2018                             OD(1)
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