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NetBSD 6.1.5 - man page for od (netbsd section 1)

OD(1)				   BSD General Commands Manual				    OD(1)

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

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

DESCRIPTION
     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 	 One-byte character display.  Display the input offset in octal, followed by six-
		 teen space-separated, three column, space-filled, characters of input data per
		 line.	Control characters are printed as their names instead of as C-style
		 escapes.

     -B 	 Same as -o.

     -b 	 One-byte octal display.  Display the input offset in octal, followed by sixteen
		 space-separated, three column, zero-filled, bytes of input data, in octal, per
		 line.	This is the default output style if no other is selected.

     -c 	 One-byte character display.  Display the input offset in octal, followed by six-
		 teen space-separated, three column, space-filled, characters of input data per
		 line.	Control characters are printed at C-style escapes, or as three octal dig-
		 its, if no C escape exists for the character.

     -d 	 Two-byte decimal display.  Display the input offset in octal, followed by eight
		 space-separated, five column, zero-filled, two-byte units of input data, in
		 unsigned decimal, per line.

     -e 	 Eight-byte floating point display.  Display the input offset in octal, followed
		 by two space-separated, twenty-one column, space filled, eight byte units of
		 input data, in floating point, per line.

     -F 	 Same as -e.

     -f 	 Four-byte floating point display.  Display the input offset in octal, followed
		 by four space-separated, 14 column, space filled, four byte units of input data,
		 in floating point, per line.

     -H 	 Four-byte hex display.  Display the input offset in octal, followed by four
		 space-separated, eight column, zero filled, four byte units of input data, in
		 hex, per line.

     -h 	 Two-byte hex display.	Display the input offset in octal, followed by eight
		 space-separated, four column, zero filled, two byte units of input data, in hex,
		 per line.

     -I 	 Four-byte decimal display.  Display the input offset in octal, followed by four
		 space-separated, eleven column, space filled, four byte units of input data, in
		 decimal, per line.

     -i 	 Two-byte decimal display.  Display the input offset in octal, followed by eight
		 space-separated, six column, space filled, two-byte units of input data, in dec-
		 imal, per line.

     -j offset	 Skip offset bytes from the beginning of the input.  By default, offset is inter-
		 preted as a decimal number.  With a leading 0x or 0X, offset is interpreted as a
		 hexadecimal number, otherwise, with a leading 0, offset is interpreted as an
		 octal number.	Appending the character b, k, or m to offset causes it to be
		 interpreted as a multiple of 512, 1024, or 1048576, respectively.

     -L 	 Same as -I.

     -l 	 Same as -I.

     -N length	 Interpret only length bytes of input.

     -O 	 Four-byte octal display.  Display the input offset in octal, followed by four
		 space-separated, eleven column, zero-filled, four-byte units of input data, in
		 octal, per line.

     -o 	 Two-byte octal display.  Display the input offset in octal, followed by eight
		 space-separated, six column, zero-filled, two-byte units of input data, in
		 octal, per line.

     -t type_string
		 Specify one or more output types.  The type_string option-argument must be a
		 string specifying the types to be used when writing the input data.  The string
		 must consist of the type specification characters:

		 a selects US-ASCII output, with control characters replaced with their names
		 instead of as C escape sequences.  See also the _u conversion provided by hex-
		 dump(1).

		 c selects a standard character based conversion.  See also the _c conversion
		 provided by hexdump(1).

		 f selects the floating point output format.  This type character can be option-
		 ally followed by the characters 4 or F to specify four byte floating point out-
		 put, or 8 or L to specify eight byte floating point output.  The default output
		 format is eight byte floats.  See also the e conversion provided by hexdump(1).

		 d, o, u, or x select decimal, octal, unsigned decimal, or hex output respec-
		 tively.  These types can optionally be followed by C to specify char-sized out-
		 put, S to specify short-sized output, I to specify int-sized output, L to spec-
		 ify long-sized output, 1 to specify one-byte output, 2 to specify two-byte out-
		 put, 4 to specify four-byte output, or 8 to specify eight-byte output.  The
		 default output format is in four-byte quantities.  See also the d, o, u, and x
		 conversions provided by hexdump(1).

     -v 	 The -v option causes od to display all input data.  Without the -v option, any
		 number of groups of output lines, which would be identical to the immediately
		 preceding group of output lines (except for the input offsets), are replaced
		 with a line comprised of a single asterisk.

     -X 	 Same as -H.

     -x 	 Same as -h.

     For each input file, od sequentially copies the input to standard output, transforming the
     data according to the options given.  If no options are specified, the default display is
     equivalent to specifying the -o option.

     od exits 0 on success and >0 if an error occurred.

SEE ALSO
     hexdump(1), strings(1)

HISTORY
     A od command appears in Version 1 AT&T UNIX.

     This man page was written in February 2001 by Andrew Brown, shortly after he augmented the
     deprecated od syntax to include things he felt had been missing for a long time.

BSD					 February 9, 2010				      BSD


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