基于magnars版本，我修改如下，修复了INIT文件名部分:

(defun rename-current-buffer-file ()
  "Renames current buffer and file it is visiting."
  (interactive)
  (let* ((name (buffer-name))
        (filename (buffer-file-name))
        (basename (file-name-nondirectory filename)))
    (if (not (and filename (file-exists-p filename)))
        (error "Buffer '%s' is not visiting a file!" name)
      (let ((new-name (read-file-name "New name: " (file-name-directory filename) basename nil basename)))
        (if (get-buffer new-name)
            (error "A buffer named '%s' already exists!" new-name)
          (rename-file filename new-name 1)
          (rename-buffer new-name)
          (set-visited-file-name new-name)
          (set-buffer-modified-p nil)
          (message "File '%s' successfully renamed to '%s'"
                   name (file-name-nondirectory new-name)))))))

Emacs 26.3(2020-04-03)具有重命名文件功能，可以使用M-x重命名文件来重命名当前文件或任何其他文件。

有一个很简单的方法，你按下命令M-x，然后键入vc-rename-file，之后你只需要在目录中选择你当前的文件，然后选择新的名称。已更改文件的buff将被刷新。

来源:https://www.gnu.org/software/emacs/manual/html_node/emacs/VC-Delete_002fRename.html

优秀的crux包具有crux-rename-file-and-buffer(以及许多其他有用的函数)。

我最喜欢的是来自Magnars (emacs岩石屏幕录制的名声)。

与其他选项不同的是，您不必从头输入名称—您可以获得要修改的当前名称。

(defun rename-current-buffer-file ()
  "Renames current buffer and file it is visiting."
  (interactive)
  (let* ((name (buffer-name))
        (filename (buffer-file-name))
        (basename (file-name-nondirectory filename)))
    (if (not (and filename (file-exists-p filename)))
        (error "Buffer '%s' is not visiting a file!" name)
      (let ((new-name (read-file-name "New name: " (file-name-directory filename) basename nil basename)))
        (if (get-buffer new-name)
            (error "A buffer named '%s' already exists!" new-name)
          (rename-file filename new-name 1)
          (rename-buffer new-name)
          (set-visited-file-name new-name)
          (set-buffer-modified-p nil)
          (message "File '%s' successfully renamed to '%s'"
                   name (file-name-nondirectory new-name)))))))

感谢James Yang的正确版本。

它可以通过复制来实现。在文件上按Shift +c, emacs将要求您为路径指定一个名称，其中包括文件名，因此只需提供新名称，然后输入…当然，你必须删除前一个。