NAME

od − octal dump

SYNOPSIS

od [ −abcdoxDOXw ] [ file ] [ [ + ]offset[ . ][ b ] ]

DESCRIPTION

Od dumps file in one or more formats as selected by the first argument.  If the first argument is missing, −o is default.  The meanings of the format argument characters are:

b Interpret bytes in octal. 

c Interpret bytes in ASCII.  Certain non-graphic characters appear as C escapes: null=\0, backspace=\b, formfeed=\f, newline=\n, return=\r, tab=\t; others appear as 3-digit octal numbers. 

d Interpret shorts (16 bit words) in decimal. 

o Interpret shorts (16 bit words) in octal. 

w Produce wide (132 column) output. 

x Interpret shorts (16 bit words) in hex. 

D Interpret longs (32 bit words) in decimal. 

O Interpret longs (32 bit words) in octal. 

X Interpret longs (32 bit words) in hex. 

The file argument specifies which file is to be dumped.  If no file argument is specified, the standard input is used. 

The offset argument specifies the offset in the file where dumping is to commence.  This argument is normally interpreted as octal bytes.  If ’.’ is appended, the offset is interpreted in decimal.  If ’b’ is appended, the offset is interpreted in blocks of 512 bytes.  If the file argument is omitted, the offset argument must be preceded ’+’. 

Dumping contiues until and end-of-file is received. 

EXAMPLE

od -D filea +2

produces an octal dump of filea divided up into 32-bit words expressed in decimal equivalents; with the dump starting point offset by 2 octal bytes. 

SEE ALSO

adb(1)

7th Edition  —  1/26/82