Skip site navigation (1)Skip section navigation (2)

FreeBSD Man Pages

Man Page or Keyword Search:
Man Architecture
Apropos Keyword Search (all sections) Output format
home | help
OD(1)			FreeBSD	General	Commands Manual			 OD(1)

NAME
     od	-- octal, decimal, hex,	ASCII dump

SYNOPSIS
     od	[-aBbcDdeFfHhIiLlOosvXx] [-A base] [-j skip] [-N length] [-t type]
	[[+]offset[.][Bb]] [file ...]

DESCRIPTION
     The od utility is a filter	which displays the specified files, or stan-
     dard input	if no files are	specified, in a	user specified format.

     The options are as	follows:

     -A	base	 Specify the input address base.  base may be one of d,	o, x
		 or n, which specify decimal, octal, hexadecimal addresses or
		 no address, respectively.

     -a		 Output	named characters.  Equivalent to -t a.

     -B, -o	 Output	octal shorts.  Equivalent to -t	o2.

     -b		 Output	octal bytes.  Equivalent to -t o1.

     -c		 Output	C-style	escaped	characters.  Equivalent	to -t c.

     -D		 Output	unsigned decimal ints.	Equivalent to -t u4.

     -e, -F	 Output	double-precision floating point	numbers.  Equivalent
		 to -t fD.

     -f		 Output	single-precision floating point	numbers.  Equivalent
		 to -t fF.

     -H, -X	 Output	hexadecimal ints.  Equivalent to -t x4.

     -h, -x	 Output	hexadecimal shorts.  Equivalent	to -t x2.

     -I, -L, -l	 Output	signed decimal longs.  Equivalent to -t	dL.

     -i		 Output	signed decimal ints.  Equivalent to -t dI.

     -j	skip	 Skip skip bytes of the	combined input before dumping.	The
		 number	may be followed	by one of b, k or m which specify the
		 units of the number as	blocks (512 bytes), kilobytes and
		 megabytes, respectively.

     -N	length	 Dump at most length bytes of input.

     -O		 Output	octal ints.  Equivalent	to -t o4.

     -s		 Output	signed decimal shorts.	Equivalent to -t d2.

     -t	type	 Specify the output format.  type is a string containing one
		 or more of the	following kinds	of type	specifiers:

		 a	 Named characters (ASCII).  Control characters are
			 displayed using the following names:

			 000 nul 001 soh 002 stx 003 etx 004 eot 005 enq
			 006 ack 007 bel 008 bs	 009 ht	 00A nl	 00B vt
			 00C ff	 00D cr	 00E so	 00F si	 010 dle 011 dc1
			 012 dc2 013 dc3 014 dc4 015 nak 016 syn 017 etb
			 018 can 019 em	 01A sub 01B esc 01C fs	 01D gs
			 01E rs	 01F us	 020 sp	 0FF del

		 c	 Characters in the default character set.  Non-print-
			 ing characters	are represented	as 3-digit octal char-
			 acter codes, except the following characters, which
			 are represented as C escapes:

			 NUL		  \0
			 alert		  \a
			 backspace	  \b
			 newline	  \n
			 carriage-return  \r
			 tab		  \t
			 vertical tab	  \v

		 [d|o|u|x][C|S|I|L|n]
			 Signed	decimal	(d), octal (o),	unsigned decimal (u)
			 or hexadecimal	(x).  Followed by an optional size
			 specifier, which may be either	C (char), S (short), I
			 (int),	L (long), or a byte count as a decimal inte-
			 ger.

		 f[F|D|L|n]
			 Floating-point	number.	 Followed by an	optional size
			 specifier, which may be either	F (float), D (double)
			 or L (long double).

     -v		 Write all input data, instead of replacing lines of duplicate
		 values	with a `*'.

     Multiple options that specify output format may be	used; the output will
     contain one line for each format.

     If	no output format is specified, -t oS is	assumed.

DIAGNOSTICS
     The od utility exits 0 on success,	and >0 if an error occurs.

COMPATIBILITY
     The traditional -s	option to extract string constants is not supported;
     consider using strings(1) instead.

SEE ALSO
     hexdump(1), strings(1)

STANDARDS
     The od utility conforms to	IEEE Std 1003.1-2001 (``POSIX.1'').

HISTORY
     An	od command appeared in Version 1 AT&T UNIX.

FreeBSD	10.1			April 17, 2002			  FreeBSD 10.1

NAME | SYNOPSIS | DESCRIPTION | DIAGNOSTICS | COMPATIBILITY | SEE ALSO | STANDARDS | HISTORY

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=od&sektion=1&manpath=FreeBSD+4.7-RELEASE>

home | help