-b     Interpret bytes in octal. This shall be equivalent to -t o1.

-c     Interpret bytes as characters specified by the current setting of the LC_CTYPE  category.  Certain
       non-graphic  characters  appear  as  C escapes: "NUL=\0" , "BS=\b" , "FF=\f" , "NL=\n" , "CR=\r" ,
       "HT=\t" ; others appear as 3-digit octal numbers.

-d     Interpret words (two-byte units) in unsigned decimal. This shall be equivalent to -t u2.

-j  skip
       Jump over skip bytes from the beginning of the input. The od utility shall read or seek  past  the
       first skip bytes in the concatenated input files. If the combined input is not at least skip bytes
       long, the od utility shall write a diagnostic message to standard error and exit with  a  non-zero
       exit status.

By  default,  the skip option-argument shall be interpreted as a decimal number. With a leading 0x or 0X,
the offset shall be interpreted as a hexadecimal number; otherwise, with a leading '0' , the offset shall
be interpreted as an octal number. Appending the character 'b' , 'k' , or 'm' to offset shall cause it to
be interpreted as a multiple of 512, 1024,  or  1048576  bytes,  respectively.  If  the  skip  number  is
hexadecimal, any appended 'b' shall be considered to be the final hexadecimal digit.

-N  count
       Format  no  more  than  count  bytes of input. By default, count shall be interpreted as a decimal
       number. With a leading 0x or 0X, count shall be interpreted as a  hexadecimal  number;  otherwise,
       with  a  leading  '0' , it shall be interpreted as an octal number. If count bytes of input (after
       successfully skipping, if -j skip is specified) are not available, it shall not be  considered  an
       error; the od utility shall format the input that is available.

-o     Interpret words (two-byte units) in octal. This shall be equivalent to -t o2.

-s     Interpret words (two-byte units) in signed decimal. This shall be equivalent to -t d2.

-t  type_string

       Specify  one  or  more  output types. See the EXTENDED DESCRIPTION section.  The application shall
       ensure that the type_string option-argument is a string specifying  the  types  to  be  used  when
       writing  the input data. The string shall consist of the type specification characters a , c , d ,
       f , o , u , and x , specifying named character, character, signed decimal, floating point,  octal,
       unsigned decimal, and hexadecimal, respectively. The type specification characters d , f , o , u ,
       and x can be followed by an optional unsigned decimal integer that specifies the number  of  bytes
       to  be  transformed by each instance of the output type. The type specification character f can be
       followed by an optional F , D , or L indicating that the conversion should be applied to  an  item
       of type float, double, or long double, respectively. The type specification characters d , o , u ,
       and x can be followed by an optional C , S , I , or L indicating that  the  conversion  should  be
       applied  to  an  item  of  type  char,  short,  int,  or long, respectively. Multiple types can be
       concatenated within the same type_string and multiple -t options can be  specified.  Output  lines
       shall  be  written for each type specified in the order in which the type specification characters
       are specified.

-v     Write 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 byte offsets), shall
       be replaced with a line containing only an asterisk ( '*' ).

-x     Interpret words (two-byte units) in hexadecimal. This shall be equivalent to -t x2.