1OD(1) User Commands OD(1)
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6 od - dump files in octal and other formats
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9 od [OPTION]... [FILE]...
10 od [-abcdfilosx]... [FILE] [[+]OFFSET[.][b]]
11 od --traditional [OPTION]... [FILE] [[+]OFFSET[.][b] [+][LABEL][.][b]]
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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.
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19 If first and second call formats both apply, the second format is
20 assumed if the last operand begins with + or (if there are 2 operands)
21 a digit. An OFFSET operand means -j OFFSET. LABEL is the
22 pseudo-address at first byte printed, incremented when dump is pro‐
23 gressing. For OFFSET and LABEL, a 0x or 0X prefix indicates hexadeci‐
24 mal; suffixes may be . for octal and b for multiply by 512.
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26 Mandatory arguments to long options are mandatory for short options
27 too.
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29 -A, --address-radix=RADIX
30 output format for file offsets; RADIX is one of [doxn], for Dec‐
31 imal, Octal, Hex or None
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33 -j, --skip-bytes=BYTES
34 skip BYTES input bytes first
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36 -N, --read-bytes=BYTES
37 limit dump to BYTES input bytes
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39 -S BYTES, --strings[=BYTES]
40 output strings of at least BYTES graphic chars; 3 is implied
41 when BYTES is not specified
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43 -t, --format=TYPE
44 select output format or formats
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46 -v, --output-duplicates
47 do not use * to mark line suppression
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49 -w[BYTES], --width[=BYTES]
50 output BYTES bytes per output line; 32 is implied when BYTES is
51 not specified
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53 --traditional
54 accept arguments in third form above
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56 --help display this help and exit
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58 --version
59 output version information and exit
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61 Traditional format specifications may be intermixed; they accumulate:
62 -a same as -t a, select named characters, ignoring high-order bit
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64 -b same as -t o1, select octal bytes
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66 -c same as -t c, select printable characters or backslash escapes
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68 -d same as -t u2, select unsigned decimal 2-byte units
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70 -f same as -t fF, select floats
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72 -i same as -t dI, select decimal ints
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74 -l same as -t dL, select decimal longs
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76 -o same as -t o2, select octal 2-byte units
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78 -s same as -t d2, select decimal 2-byte units
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80 -x same as -t x2, select hexadecimal 2-byte units
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82 TYPE is made up of one or more of these specifications:
83 a named character, ignoring high-order bit
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85 c printable character or backslash escape
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87 d[SIZE]
88 signed decimal, SIZE bytes per integer
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90 f[SIZE]
91 floating point, SIZE bytes per integer
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93 o[SIZE]
94 octal, SIZE bytes per integer
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96 u[SIZE]
97 unsigned decimal, SIZE bytes per integer
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99 x[SIZE]
100 hexadecimal, SIZE bytes per integer
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102 SIZE is a number. For TYPE in [doux], SIZE may also be C for
103 sizeof(char), S for sizeof(short), I for sizeof(int) or L for
104 sizeof(long). If TYPE is f, SIZE may also be F for sizeof(float), D
105 for sizeof(double) or L for sizeof(long double).
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107 Adding a z suffix to any type displays printable characters at the end
108 of each output line.
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110 BYTES is hex with 0x or 0X prefix, and may have a multiplier suffix:
111 b 512
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113 KB 1000
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115 K 1024
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117 MB 1000*1000
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119 M 1024*1024
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121 and so on for G, T, P, E, Z, Y.
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123 GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
124 Report od translation bugs to <http://translationproject.org/team/>
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127 od -A x -t x1z -v
128 Display hexdump format output
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130 od -A o -t oS -w16
131 The default output format used by od
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134 Written by Jim Meyering.
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137 Copyright © 2013 Free Software Foundation, Inc. License GPLv3+: GNU
138 GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
139 This is free software: you are free to change and redistribute it.
140 There is NO WARRANTY, to the extent permitted by law.
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143 The full documentation for od is maintained as a Texinfo manual. If
144 the info and od programs are properly installed at your site, the com‐
145 mand
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147 info coreutils 'od invocation'
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149 should give you access to the complete manual.
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153GNU coreutils 8.22 October 2018 OD(1)