^M at the end of every line in vim

Question

When I am editing source files using vim and other editors sometimes at the end of the line I get these ^M characters at the end of each line. I think that it has something

Answer 1

mcedit: shift+f2, set unix format (LF), ok

Answer 2

I tend to run afflicted files through fromdos before reopening them. fromdos is part of the tofrodos package.

Answer 3

" put this in your ~/.vimrc file and :source ~/.vimrc
" then you can do: Dos2Unix
" dos2unix ^M
fun! Dos2unixFunction()
    let _s=@/
    let l = line(".")
    let c = col(".")
    try
        set ff=unix
        w!
        "%s/\%x0d$//e
    catch /E32:/
        echo "Sorry, first save the file."
    endtry
    let @/=_s
    call cursor(l, c)
endfun
com! Dos2Unix keepjumps call Dos2unixFunction()