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SUSv3 requires and give od a proper manual page. PR: 36783
236 lines
5.8 KiB
Groff
236 lines
5.8 KiB
Groff
.\" Copyright (c) 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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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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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)od.1 8.1 (Berkeley) 6/6/93
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.\" $FreeBSD$
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.\"
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.Dd April 17, 2002
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.Os
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.Dt OD 1
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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 aBbcDdeFfHhIiLlOosvXx
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.Op Fl A Ar base
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.Op Fl j Ar skip
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.Op Fl N Ar length
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.Op Fl t Ar type
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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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.Oc
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.Sm on
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.Op Ar
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.Sh DESCRIPTION
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The
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.Nm
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utility is a filter which displays the specified files, or standard
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input if no files are specified, in a user specified format.
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.Pp
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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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Output named characters.
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Equivalent to
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.Fl t Ar a .
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.It Fl B , Fl o
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Output octal shorts.
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Equivalent to
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.Fl t Ar o2 .
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.It Fl b
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Output octal bytes.
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Equivalent to
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.Fl t Ar o1 .
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.It Fl c
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Output C-style escaped characters.
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Equivalent to
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.Fl t Ar c .
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.It Fl D
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Output unsigned decimal ints.
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Equivalent to
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.Fl t Ar u4 .
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.It Fl e , Fl F
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Output double-precision floating point numbers.
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Equivalent to
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.Fl t Ar fD .
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.It Fl f
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Output single-precision floating point numbers.
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Equivalent to
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.Fl t Ar fF .
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.It Fl H , Fl X
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Output hexadecimal ints.
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Equivalent to
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.Fl t Ar x4 .
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.It Fl h , Fl x
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Output hexadecimal shorts.
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Equivalent to
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.Fl t Ar x2 .
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.It Fl I , Fl L , Fl l
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Output signed decimal longs.
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Equivalent to
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.Fl t Ar dL .
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.It Fl i
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Output signed decimal ints.
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Equivalent to
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.Fl t Ar dI .
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.It Fl j Ar skip
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Skip
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.Ar skip
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bytes of the combined input before dumping. The number may be followed by one
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of
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.Ql b ,
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.Ql k
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or
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.Ql m
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which specify the units of the number as blocks (512 bytes), kilobytes and
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megabytes, respectively.
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.It Fl N Ar length
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Dump at most
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.Ar length
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bytes of input.
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.It Fl O
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Output octal ints.
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Equivalent to
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.Fl t Ar o4 .
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.It Fl s
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Output signed decimal shorts.
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Equivalent to
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.Fl t Ar d2 .
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.It Fl t Ar type
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Specify the output format.
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.Ar type
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is a string containing one or more of the following kinds of type specifiers:
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.Bl -tag -width indent
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.It Cm a
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Named characters
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.Pq Sq ASCII .
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Control characters are displayed using the following names:
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.Bl -column \&000_nu \&001_so \&002_st \&003_et \&004_eo
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.It "\&000\ nul\t001\ soh\t002\ stx\t003\ etx\t004\ eot\t005\ enq
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.It "\&006\ ack\t007\ bel\t008\ bs\t009\ ht\t00A\ nl\t00B\ vt
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.It "\&00C\ ff\t00D\ cr\t00E\ so\t00F\ si\t010\ dle\t011\ dc1
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.It "\&012\ dc2\t013\ dc3\t014\ dc4\t015\ nak\t016\ syn\t017\ etb
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.It "\&018\ can\t019\ em\t01A\ sub\t01B\ esc\t01C\ fs\t01D\ gs
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.It "\&01E\ rs\t01F\ us\t020\ sp\t0FF\ del
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.El
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.It Cm c
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Characters in the default character set. Non-printing characters are
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represented as 3-digit octal character codes, except the following
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characters, which are represented as C escapes:
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.Bl -column carriage-return \er
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.It NUL Ta \e0
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.It alert Ta \ea
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.It backspace Ta \eb
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.It newline Ta \en
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.It carriage-return Ta \er
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.It tab Ta \et
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.It vertical tab Ta \ev
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.El
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.It Cm [d|o|u|x][C|S|I|L| Ns Ar n Ns ]
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Signed decimal
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.Pq Ql d ,
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octal
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.Pq Ql o ,
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unsigned decimal
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.Pq Ql u
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or
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hexadecimal
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.Pq Ql x .
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Followed by an optional size specifier, which may be either
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.Ql C
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.Pq "char" ,
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.Ql S
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.Pq "short" ,
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.Ql I
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.Pq "int" ,
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.Ql L
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.Pq "long" ,
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or a byte count as a decimal integer.
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.It Cm f[F|D|L| Ns Ar n Ns ]
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Floating-point number.
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Followed by an optional size specifier, which may be either
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.Ql F
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.Pq "float" ,
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.Ql D
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.Pq "double"
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or
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.Ql L
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.Pq "long double" .
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.El
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.It Fl v
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Write all input data, instead of replacing lines of duplicate values with a
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.Ql * .
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.El
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.Pp
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Multiple options that specify output format may be used; the output will
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contain one line for each format.
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.Pp
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If no output format is specified,
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.Fl t Ar oS
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is assumed.
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.Sh DIAGNOSTICS
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.Ex -std
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.Sh COMPATIBILITY
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The traditional
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.Fl s
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option to extract string constants is not supported; consider using
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.Xr strings 1
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instead.
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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 STANDARDS
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The
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.Nm
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utility conforms to
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.St -p1003.1-2001 .
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.Sh HISTORY
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An
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.Nm
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command appeared in
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.At v1 .
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