Hi Paul

That is exactly what I am getting. It is probably acting quite correctly, the problem is that the shell executing those control characters is both confusing and a possible security risk. I've tried this in ksh, dash, bash and zsh and they all execute the control characters. 

I think that they should be suppressed or escaped by default and a flag should be provided to allow them to be passed out unescaped. Maybe this has become a feature request...



On Mon, 19 Feb 2018 at 22:13 Paul Eggert <eggert@cs.ucla.edu> wrote:
Wayne Gemmell wrote:
> I would expect the CR to be output verbatim

It is output verbatim, just as you expect. For example:

$ printf 'messag1\rlogin\rmask' >test.log
503-day $ grep --color=never login test.log | od -c
0000000   m   e   s   s   a   g   1  \r   l   o   g   i   n  \r   m   a
0000020   s   k  \n
0000023
--
Regards
Wayne