Re: ^M chars in *Async Command Output*

[Andreas Politz <politza@fh-trier.de>]

Andreas Politz wrote:
> Sebastian Tennant wrote:
>> Hi all,
>>
>> When I issue asynchronous commands using shell-command, for example:
>>
>>   M-! apt-get update & RET
>>
>> buffer *Async Command Output* is filled with ^M characters and the
>> output is generally a mess.
>>
>> Apparently not all Emacsen behave in this way though.
>>
>> If you have a moment, could you perform a similar test and let us know
>> if the same thing happens to you.  Include the Emacs version number in
>> your follow-up, and if it _does_ happen to you and you have a little
>> more time, whether you consider it a feature or a bug?
>>
>> Your assistance is much appreciated.
>>
>> Sebastian
> 
> I tried it with aptitude, it's the same. The process uses carriage-returns
> to display the progress `widget' this show up as '^M' in emacs buffer.
> Somehow this processes think they are running in a terminal, I think
> because asynchronous shell-commands are runnning/started in a shell.
> 
> In a terminal :
> 
> $ echo -e 'Hello\rWorld'
> $ World
> 
> In emacs :
> 
> M-! echo -e 'Hello\rWorld' &
> Hello ^MWorld
> 
> Maybe a process-filter-function is the solution or pipe the command
> through the utility 'col', like
> M-! apt-get update | col &

Mh, the important thing is the pipe not the command, so `cat' would
bet the better choice.
> 
> -ap
>