File: od.1

package info (click to toggle)
bsdmainutils 11.1.2
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 1,488 kB
  • sloc: ansic: 7,001; makefile: 157; python: 108; sh: 91; perl: 39
file content (264 lines) | stat: -rw-r--r-- 6,086 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
.\" Copyright (c) 1990, 1993
.\"	The Regents of the University of California.  All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 3. Neither the name of the University nor the names of its contributors
.\"    may be used to endorse or promote products derived from this software
.\"    without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\"	@(#)od.1	8.1 (Berkeley) 6/6/93
.\" $FreeBSD: head/usr.bin/hexdump/od.1 314436 2017-02-28 23:42:47Z imp $
.\"
.Dd December 22, 2011
.Dt OD 1
.Os
.Sh NAME
.Nm od
.Nd octal, decimal, hex, ASCII dump
.Sh SYNOPSIS
.Nm
.Op Fl aBbcDdeFfHhIiLlOosvXx
.Op Fl A Ar base
.Op Fl j Ar skip
.Op Fl N Ar length
.Op Fl t Ar type
.Op Oo Cm + Oc Ns Ar offset Ns Oo Cm \&. Oc Ns Op Cm Bb
.Op Ar
.Sh DESCRIPTION
The
.Nm
utility is a filter which displays the specified files, or standard
input if no files are specified, in a user specified format.
.Pp
The options are as follows:
.Bl -tag -width ".Fl I , L , l"
.It Fl A Ar base
Specify the input address base.
The argument
.Ar base
may be one of
.Cm d ,
.Cm o ,
.Cm x
or
.Cm n ,
which specify decimal, octal, hexadecimal
addresses or no address, respectively.
.It Fl a
Output named characters.
Equivalent to
.Fl t Cm a .
.It Fl B , o
Output octal shorts.
Equivalent to
.Fl t Cm o2 .
.It Fl b
Output octal bytes.
Equivalent to
.Fl t Cm o1 .
.It Fl c
Output C-style escaped characters.
Equivalent to
.Fl t Cm c .
.It Fl D
Output unsigned decimal ints.
Equivalent to
.Fl t Cm u4 .
.It Fl d
Output unsigned decimal shorts.
Equivalent to
.Fl t Cm u2 .
.It Fl e , F
Output double-precision floating point numbers.
Equivalent to
.Fl t Cm fD .
.It Fl f
Output single-precision floating point numbers.
Equivalent to
.Fl t Cm fF .
.It Fl H , X
Output hexadecimal ints.
Equivalent to
.Fl t Cm x4 .
.It Fl h , x
Output hexadecimal shorts.
Equivalent to
.Fl t Cm x2 .
.It Fl I , L , l
Output signed decimal longs.
Equivalent to
.Fl t Cm dL .
.It Fl i
Output signed decimal ints.
Equivalent to
.Fl t Cm dI .
.It Fl j Ar skip
Skip
.Ar skip
bytes of the combined input before dumping.
The number may be followed by one
of
.Cm b , k
or
.Cm m
which specify the units of the number as blocks (512 bytes), kilobytes and
megabytes, respectively.
.It Fl N Ar length
Dump at most
.Ar length
bytes of input.
.It Fl O
Output octal ints.
Equivalent to
.Fl t Cm o4 .
.It Fl s
Output signed decimal shorts.
Equivalent to
.Fl t Cm d2 .
.It Fl t Ar type
Specify the output format.
The
.Ar type
argument
is a string containing one or more of the following kinds of type specifiers:
.Bl -tag -width indent
.It Cm a
Named characters
.Pq Tn ASCII .
Control characters are displayed using the following names:
.Bl -column "000 NUL" "001 SOH" "002 STX" "003 ETX" "004 EOT" "005 ENQ"
.It "000 NUL	001 SOH	002 STX	003 ETX	004 EOT	005 ENQ"
.It "006 ACK	007 BEL	008 BS	009 HT	00A NL	00B VT"
.It "00C FF	00D CR	00E SO	00F SI	010 DLE	011 DC1"
.It "012 DC2	013 DC3	014 DC4	015 NAK	016 SYN	017 ETB"
.It "018 CAN	019 EM	01A SUB	01B ESC	01C FS	01D GS"
.It "01E RS	01F US	020 SP	07F DEL	\&	\&"
.El
.It Cm c
Characters in the default character set.
Non-printing characters are
represented as 3-digit octal character codes, except the following
characters, which are represented as C escapes:
.Pp
.Bl -tag -width carriage-return -compact
.It NUL
\e0
.It alert
\ea
.It backspace
\eb
.It newline
\en
.It carriage-return
\er
.It tab
\et
.It vertical tab
\ev
.El
.Pp
Multi-byte characters are displayed in the area corresponding to the first
byte of the character.
The remaining bytes are shown as
.Ql ** .
.It Xo
.Sm off
.Op Cm d | o | u | x
.Op Cm C | S | I | L | Ar n
.Sm on
.Xc
Signed decimal
.Pq Cm d ,
octal
.Pq Cm o ,
unsigned decimal
.Pq Cm u
or
hexadecimal
.Pq Cm x .
Followed by an optional size specifier, which may be either
.Cm C
.Pq Vt char ,
.Cm S
.Pq Vt short ,
.Cm I
.Pq Vt int ,
.Cm L
.Pq Vt long ,
or a byte count as a decimal integer.
.It Xo
.Sm off
.Cm f
.Op Cm F | D | L | Ar n
.Sm on
.Xc
Floating-point number.
Followed by an optional size specifier, which may be either
.Cm F
.Pq Vt float ,
.Cm D
.Pq Vt double
or
.Cm L
.Pq Vt "long double" .
.El
.It Fl v
Write all input data, instead of replacing lines of duplicate values with a
.Ql * .
.El
.Pp
Multiple options that specify output format may be used; the output will
contain one line for each format.
.Pp
If no output format is specified,
.Fl t Cm oS
is assumed.
.Sh ENVIRONMENT
The
.Ev LANG , LC_ALL
and
.Ev LC_CTYPE
environment variables affect the execution of
.Nm
as described in
.Xr environ 7 .
.Sh EXIT STATUS
.Ex -std
.Sh COMPATIBILITY
The traditional
.Fl s
option to extract string constants is not supported; consider using
.Xr strings 1
instead.
.Sh SEE ALSO
.Xr hexdump 1 ,
.Xr strings 1
.Sh STANDARDS
The
.Nm
utility conforms to
.St -p1003.1-2001 .
.Sh HISTORY
An
.Nm
command appeared in
.At v1 .