I'm managing workspaces by creating new frames, but running C-x 5 C-h couldn't find anything like "run command in new frame", basically what I'd like to do is to run some REPL or shell in new frame. Is it possible?

  • Why not just open a new frame and then run the command? If you do it all the time and want to save a step, you could write a command that does both. – Dan Jan 7 '15 at 14:36
  • I like to modify source code and create my own custom custom setup; however, most people seem to prefer chaining functions together or using advice. To the extent that you want to create your own function to open a shell, the key ingredient to your display issue is the line of the shell function (defined within the library shell.el) that looks like this: (pop-to-buffer-same-window buffer). For example, you might be interested in something like (swtich-to-buffer-other-frame buffer). There are also those users who prefer to modify the display-buffer-alist. – lawlist Jan 7 '15 at 15:12

If you simply want a programmatic way to run a command in a new frame, just create the frame and run the command:

(defun simple-run-command-in-new-frame (command)
  (select-frame (make-frame))
  (funcall #'command))

If you want an interactive command that queries for the command being run, similar to M-x, then you'll need to take care of details such as handling the prefix argument and querying the user. The following should work in most circumstances:

(defun run-command-in-new-frame (prefixarg command-name)
  (interactive (list current-prefix-arg (read-extended-command)))
  (let ((command (intern-soft command-name)))
    (unless command
      (error "%s is not a valid command name" command-name))
    (select-frame (make-frame))
    (let ((prefix-arg prefixarg))
      (command-execute command))))
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