replacing ^M with emacs
Tsampros Leonidas
ltsampros at upnet.gr
Sat Oct 28 01:20:49 UTC 2006
On Fri, Oct 27, 2006 at 05:30:34PM -0400, Jerry McAllister wrote:
> On Fri, Oct 27, 2006 at 12:26:25PM -0700, Noah wrote:
>
> > Hi there,
> >
> > It appears that a text editor placed a bunch on ^M throughout a text
> > file I am working with. I assure this is equivalent to eh keystroke
> > control-M.
>
> This is probably "MS-DOS" type text file. MS text file lines
> all end in a CR-LF character pair whereas UNIX text file lines
> have only a LF (line feed) and the end of each line.
> All text editors on MS systems do that and if you do a binary transfer
> of a file from MS to UNIX you will get all the extra ^M characters
> showing up. most versions of ftp have an ASCII mode that will
> do the conversion for you as you transfer the file back and forth
> between MS and UNIX. I think SCP only does binary transfers.
>
> I am not an Emacs user, but,
> You can easily use tr(1) to remove all the ^M characters from a
> file. tr -r "\r" <badfile >goodfile
> where badfile is the one with the ^M characters and goodfile is
> the newly cleaned copy. The only anoying thing is having to
> write to a second file and then get rid of the first or mv the
> new one back to the old (as in: mv goodfile badfile after doing
> the tr.
>
> ////jerry
>
I think there is something similar in emacs by using the
set-buffer-file-coding-system (binded at C-x RET f in default
configurations).
So to "cure" and succesfully "convert" DOS files into unix format, i
use C-x RET f unix RET.
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