I am in terminal mode on Ubuntu, and I'm running emacs with 2 buffers open, one is a ruby file, and the other is a shell (opened by typing M-x shell ), and when I switch to the shell buffer, I want to run the same command that I ran before. I would normally just hit the up arrow in a terminal window, but in emacs, it simply puts the cursor up one line.
Does anyone know of keystroke to run the previous shell command from within an emacs shell?
In addition to M-p, you can also use C-up, which I find preferable. The complementary keys M-n or C-down will get you the next command in history.
You might also add this to your emacs init file:
(define-key comint-mode-map (kbd "<up>") 'comint-previous-input)
(define-key comint-mode-map (kbd "<down>") 'comint-next-input)
thiagowfx solution is preferable to me, since I usually try to avoid context-dependency. However, in order for it to work I had to add loading comint mode first:
(progn(require 'comint)
(define-key comint-mode-map (kbd "<up>") 'comint-previous-input)
(define-key comint-mode-map (kbd "<down>") 'comint-next-input))
DeLorean88's answer worked for me, but only with a second closing bracket on the "progn" line:
(progn(require 'comint))
(define-key comint-mode-map (kbd "<up>") 'comint-previous-input)
(define-key comint-mode-map (kbd "<down>") 'comint-next-input))
