title: What is a .un~ file or or why does Vim in the Terminal make the .un~ file?
body: <p>I've noticed I have some dotfiles that end with <code>.un~</code>, for example I have a <code>.vividchalk.vim.un~</code>, but I'm not sure where that came from. It seems like they are created when I use Vim in the Terminal. What are these files? Can have them remove themselves when I close the file I'm editing? </p>