Elisp code to create a rails console

rails-console.el

(defun rails-console ()
  "Create a rails console process, if one doesn't exist. And switch to *rails-console* buffer."
  (interactive)
  (if (null (get-buffer "*rails-console*"))
      (progn
         (term "/bin/bash")
        (term-send-string (get-buffer-process "*terminal*") "rails console\n")
        (switch-to-buffer "*terminal*")
        (rename-buffer "*rails-console*")
        (term-line-mode))
    (switch-to-buffer "*rails-console*")))