304 lines
7.5 KiB
Groff
304 lines
7.5 KiB
Groff
.\" $NetBSD: od.1,v 1.25 2010/02/09 14:25:39 wiz Exp $
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.\"
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.\" Copyright (c) 2001 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Andrew Brown.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"/
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.Dd February 9, 2010
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.Dt OD 1
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.Os
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.Sh NAME
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.Nm od
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.Nd octal, decimal, hex, ascii dump
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.Sh SYNOPSIS
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.Nm
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.Op Fl aBbcDdeFfHhIiLlOovXx
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.Bk -words
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.Op Fl A Ar base
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.Op Fl j Ar skip
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.Ek
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.Bk -words
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.Op Fl N Ar length
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.Ek
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.Bk -words
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.Op Fl t Ar type_string
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.Ek
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.Sm off
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.Oo
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.Op Cm \&+
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.Li offset
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.Op Cm \&.
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.Op Cm Bb
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.Sm on
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.Oc
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.Ar file ...
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.Sh DESCRIPTION
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The options are as follows:
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.Bl -tag -width Fl
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.It Fl A Ar base
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Specify the input address base.
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.Ar base
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may be one of
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.Ql d ,
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.Ql o ,
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.Ql x
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or
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.Ql n ,
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which specify decimal, octal, hexadecimal
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addresses or no address, respectively.
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.It Fl a
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.Em One-byte character display .
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Display the input offset in octal, followed by sixteen
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space-separated, three column, space-filled, characters of input data
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per line.
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Control characters are printed as their names instead of as
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C-style escapes.
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.It Fl B
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Same as
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.Fl o .
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.It Fl b
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.Em One-byte octal display .
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Display the input offset in octal, followed by sixteen
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space-separated, three column, zero-filled, bytes of input data, in
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octal, per line.
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This is the default output style if no other is
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selected.
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.It Fl c
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.Em One-byte character display .
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Display the input offset in octal, followed by sixteen
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space-separated, three column, space-filled, characters of input data
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per line.
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Control characters are printed at C-style escapes, or as
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three octal digits, if no C escape exists for the character.
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.It Fl d
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.Em Two-byte decimal display .
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Display the input offset in octal, followed by eight
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space-separated, five column, zero-filled, two-byte units
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of input data, in unsigned decimal, per line.
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.It Fl e
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.Em Eight-byte floating point display .
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Display the input offset in octal, followed by two space-separated,
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twenty-one column, space filled, eight byte units of input data, in
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floating point, per line.
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.It Fl F
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Same as
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.Fl e .
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.It Fl f
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.Em Four-byte floating point display .
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Display the input offset in octal, followed by four space-separated,
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14 column, space filled, four byte units of input data, in floating
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point, per line.
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.It Fl H
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.Em Four-byte hex display .
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Display the input offset in octal, followed by four space-separated,
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eight column, zero filled, four byte units of input data, in hex,
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per line.
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.It Fl h
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.Em Two-byte hex display .
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Display the input offset in octal, followed by eight space-separated,
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four column, zero filled, two byte units of input data, in hex,
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per line.
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.It Fl I
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.Em Four-byte decimal display .
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Display the input offset in octal, followed by four space-separated,
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eleven column, space filled, four byte units of input data, in
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decimal, per line.
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.It Fl i
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.Em Two-byte decimal display .
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Display the input offset in octal, followed by eight space-separated,
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six column, space filled, two-byte units of input data, in decimal,
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per line.
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.It Fl j Ar offset
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Skip
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.Ar offset
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bytes from the beginning of the input.
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By default,
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.Ar offset
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is interpreted as a decimal number.
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With a leading
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.Cm 0x
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or
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.Cm 0X ,
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.Ar offset
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is interpreted as a hexadecimal number,
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otherwise, with a leading
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.Cm 0 ,
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.Ar offset
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is interpreted as an octal number.
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Appending the character
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.Cm b ,
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.Cm k ,
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or
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.Cm m
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to
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.Ar offset
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causes it to be interpreted as a multiple of
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.Li 512 ,
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.Li 1024 ,
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or
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.Li 1048576 ,
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respectively.
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.It Fl L
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Same as
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.Fl I .
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.It Fl l
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Same as
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.Fl I .
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.It Fl N Ar length
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Interpret only
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.Ar length
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bytes of input.
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.It Fl O
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.Em Four-byte octal display .
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Display the input offset in octal, followed by four
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space-separated, eleven column, zero-filled, four-byte units
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of input data, in octal, per line.
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.It Fl o
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.Em Two-byte octal display .
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Display the input offset in octal, followed by eight
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space-separated, six column, zero-filled, two-byte units
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of input data, in octal, per line.
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.It Fl t Ar type_string
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Specify one or more output types.
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The
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.Em type_string
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option-argument must be a string specifying the types to be used when
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writing the input data.
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The string must consist of the type specification characters:
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.Pp
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.Cm a
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selects US-ASCII output, with control characters replaced with their
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names instead of as C escape sequences.
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See also the
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.Cm _u
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conversion provided by hexdump(1).
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.Pp
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.Cm c
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selects a standard character based conversion.
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See also the
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.Cm _c
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conversion provided by hexdump(1).
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.Pp
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.Cm f
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selects the floating point output format.
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This type character can be optionally followed by the characters
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.Cm 4
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or
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.Cm F
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to specify four byte floating point output, or
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.Cm 8
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or
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.Cm L
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to specify eight byte floating point output.
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The default output format is eight byte floats.
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See also the
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.Cm e
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conversion provided by hexdump(1).
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.Pp
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.Cm d ,
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.Cm o ,
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.Cm u ,
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or
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.Cm x
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select decimal, octal, unsigned decimal, or hex output respectively.
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These types can optionally be followed by
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.Cm C
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to specify
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.Em char Ns -sized
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output,
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.Cm S
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to specify
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.Em short Ns -sized
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output,
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.Cm I
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to specify
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.Em int Ns -sized
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output,
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.Cm L
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to specify
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.Em long Ns -sized
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output,
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.Cm 1
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to specify one-byte output,
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.Cm 2
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to specify two-byte output,
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.Cm 4
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to specify four-byte output, or
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.Cm 8
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to specify eight-byte output.
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The default output format is in four-byte quantities.
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See also the
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.Cm d ,
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.Cm o ,
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.Cm u ,
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and
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.Cm x
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conversions provided by hexdump(1).
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.\"(a|c|f[FLD]?|[doux][C1S2I4L8]?)*
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.It Fl v
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The
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.Fl v
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option causes
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.Nm
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to display all input data.
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Without the
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.Fl v
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option, any number of groups of output lines, which would be
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identical to the immediately preceding group of output lines (except
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for the input offsets), are replaced with a line comprised of a
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single asterisk.
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.It Fl X
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Same as
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.Fl H .
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.It Fl x
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Same as
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.Fl h .
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.El
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.Pp
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For each input file,
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.Nm
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sequentially copies the input to standard output, transforming the
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data according to the options given.
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If no options are specified, the
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default display is equivalent to specifying the
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.Fl o
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option.
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.Pp
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.Nm
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exits 0 on success and \*[Gt]0 if an error occurred.
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.Sh SEE ALSO
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.Xr hexdump 1 ,
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.Xr strings 1
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.Sh HISTORY
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A
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.Nm
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command appears in
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.At v1 .
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.Pp
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This man page was written in February 2001 by Andrew Brown, shortly
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after he augmented the deprecated od syntax to include things he felt
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had been missing for a long time.
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