Switching between split buffers in vim

It's possible to set up vim to edit multiple files without having to exit at all. You use multiple buffers and switch between them. Since you're using vim inside screen You can put the following in your ~/.vimrc to enable that.

   set hidden
   syntax enable
   source $VIMRUNTIME/menu.vim
   set wildmenu
   set cpo-=<
   set wcm=<C-Z>
   map <F4> :emenu <C-Z>
   nmap <Esc>[5D :bp<CR>
   nmap <Esc>Od  :bp<CR>
   nmap <Esc>OD  :bp<CR>
   nmap <Esc>[5C :bn<CR>
   nmap <Esc>Oc  :bn<CR>
   nmap <Esc>OC  :bn<CR>
   nmap <Esc>[3~ :bd<CR>
   nmap ZZ :bd<CR>

Those key mappings map to Ctrl-Left and Right arrow keys to switch between buffers. The F4 key invoke the same menu the GUI would show. Pressing tab also now displays a little menu for selecting the completion when your press tab.

This drove me mad.. until I fixed it.

Now there's no scratch, messages, or completions buffers to screw with your flow. Enjoy!

Place this in your .emacs:

;; Makes *scratch* empty.
(setq initial-scratch-message "")

;; Removes *scratch* from buffer after the mode has been set.
(defun remove-scratch-buffer ()
  (if (get-buffer "*scratch*")
      (kill-buffer "*scratch*")))
(add-hook 'after-change-major-mode-hook 'remove-scratch-buffer)

;; Removes *messages* from the buffer.
(setq-default message-log-max nil)
(kill-buffer "*Messages*")

;; Removes *Completions* from buffer after you've opened a file.
(add-hook 'minibuffer-exit-hook
      '(lambda ()
         (let ((buffer "*Completions*"))
           (and (get-buffer buffer)
                (kill-buffer buffer)))))

;; Don't show *Buffer list* when opening multiple files at the same time.
(setq inhibit-startup-buffer-menu t)

;; Show only one active window when opening multiple files at the same time.
(add-hook 'window-setup-hook 'delete-other-windows)

Bonus:

;; No more typing the whole yes or no. Just y or n will do.
(fset 'yes-or-no-p 'y-or-n-p)