Re: replacing ^M with emacs

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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