GNU bug report logs - #41518
Bug in od?

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From: Bob Proulx <bob <at> proulx.com>
To: Yuan Cao <yuancao85 <at> gmail.com>
Cc: 41518 <at> debbugs.gnu.org
Subject: bug#41518: Bug in od?
Date: Thu, 28 May 2020 23:20:41 -0600

A little more information.

Pádraig Brady wrote:
> Yuan Cao wrote:
> > I recently came across the following behavior.
> > 
> > When using "--traditional x2" or "-x" option, it seems the order of hex
> > code output for the characters is pairwise reversed (if that's the correct
> > way of describing it).

‘-x’
     Output as hexadecimal two-byte units.  Equivalent to ‘-t x2’.

Outputs 16-bit integers in the *native byte order* of the machine.
Which may be either big-endian or little-endian depending on the
machine.  Not portable.  Depends upon the machine it is run upon.

> If you want to hexdump independently of endianess you can:
> 
>   od -Ax -tx1z -v

The -tx1 option above is portable because it outputs 1-byte units
instead of 2-byte units which is independent of endianess.

This is the FAQ entry for this topic.

  https://www.gnu.org/software/coreutils/faq/coreutils-faq.html#The-_0027od-_002dx_0027-command-prints-bytes-in-the-wrong-order_002e

Bob

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