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5.2 Sample Configuration

Here is an example of configuration settings for ERC. This can go into your Emacs configuration file. Everything after the (require 'erc) command can optionally go into ~/.emacs.d/.ercrc.el.

;;; Sample ERC configuration

;; Load authentication info from an external source.  Put sensitive
;; passwords and the like in here.
(load "~/.emacs.d/.erc-auth")

;; This is an example of how to make a new command.  Type "/uptime" to
;; use it.
(defun erc-cmd-UPTIME (&rest ignore)
  "Display the uptime of the system, as well as some load-related
stuff, to the current ERC buffer."
  (let ((uname-output
          ", load average: " "] {Load average} ["
          ;; Collapse spaces, remove
           " +" " "
           ;; Remove beginning and trailing whitespace
            "^ +\\|[ \n]+$" ""
            (shell-command-to-string "uptime"))))))
     (concat "{Uptime} [" uname-output "]"))))

;; This causes ERC to connect to the Libera.Chat network upon hitting
;; C-c e f.  Replace MYNICK with your IRC nick.
(global-set-key "\C-cef" (lambda () (interactive)
                           (erc :server "" :port "6667"
                                :nick "MYNICK")))

;; This causes ERC to connect to the IRC server on your own machine (if
;; you have one) upon hitting C-c e b.  Replace MYNICK with your IRC
;; nick.  Often, people like to run bitlbee ( as an
;; AIM/Jabber/MSN to IRC gateway, so that they can use ERC to chat with
;; people on those networks.
(global-set-key "\C-ceb" (lambda () (interactive)
                           (erc :server "localhost" :port "6667"
                                :nick "MYNICK")))

;; Make C-c RET (or C-c C-RET) send messages instead of RET.  This has
;; been commented out to avoid confusing new users.
;; (define-key erc-mode-map (kbd "RET") nil)
;; (define-key erc-mode-map (kbd "C-c RET") 'erc-send-current-line)
;; (define-key erc-mode-map (kbd "C-c C-RET") 'erc-send-current-line)

;;; Options

;; Join the #emacs and #erc channels whenever connecting to
;; Libera.Chat.
(setq erc-autojoin-channels-alist
      '(("Libera.Chat" "#emacs" "#erc")))

;; Rename server buffers to reflect the current network name instead
;; of SERVER:PORT (e.g., "Libera.Chat" instead of
;; "").  This is useful when using a bouncer like
;; ZNC where you have multiple connections to the same server.
(setq erc-rename-buffers t)

;; Interpret mIRC-style color commands in IRC chats
(setq erc-interpret-mirc-color t)

;; The following are commented out by default, but users of other
;; non-Emacs IRC clients might find them useful.
;; Kill buffers for channels after /part
;; (setq erc-kill-buffer-on-part t)
;; Kill buffers for private queries after quitting the server
;; (setq erc-kill-queries-on-quit t)
;; Kill buffers for server messages after quitting the server
;; (setq erc-kill-server-buffer-on-quit t)

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