NAME

od − octal dump

SYNOPSIS

od [ −bcDdFfOoSsvXx ] [ file ] [ [ + ]offset[ . | b ] ]

DESCRIPTION

od displays file in one or more formats, as selected by the first argument.  If the first argument is missing, −o is default.  If no file is specified, the standard input is used.  For the purposes of this description, "word" refers to a 16-bit unit, independent of the word size of the machine; "long word" refers to a 32-bit unit, and "double long word" refers to a 64-bit unit.  The meanings of the format options are:

−b Interpret bytes in octal. 

−c Interpret bytes as single-byte characters.  Certain non-graphic characters appear as C-language escapes: null=\0, backspace=\b, form-feed=\f, new-line=\n, return=\r, tab=\t; others appear as 3-digit octal numbers.  For example: echo "hello world" | od -c
0000000   h   e   l   l   o       w   o   r   l   d  \n
0000014

−D Interpret long words in unsigned decimal. 

−d Interpret words in unsigned decimal. 

−F Interpret double long words in extended precision. 

−f Interpret long words in floating point. 

−O Interpret long words in unsigned octal. 

−o Interpret words in octal. 

−S Interpret long words in signed decimal. 

−s Interpret words in signed decimal. 

−v Show all data (verbose).  Without this option, duplicate output lines are indicated by a single output line with only an asterisk in column one. 

−X Interpret long words in hex. 

−x Interpret words in hex. 

offset specifies an offset from the beginning of file where the display will begin.  offset is normally interpreted as octal bytes.  If . is appended, offset is interpreted in decimal.  If b is appended, offset is interpreted in blocks of 512 bytes.  If file is omitted, offset must be preceded by +. 

The display continues until an end-of-file is reached. 

CX/UX User’s Reference Manual