How can I open files externally in Emacs dired mode?

user_865468 0
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I want to open a pdf with evince instead of DocView mode. Is there a possibility to open a file with a specific command like 'evince'?

docview dired emacs
7 Answers
(defun dired-open()
  (interactive)
  (setq file (dired-get-file-for-visit))
  (setq ext (file-name-extension file))
  (cond ((string= ext "pdf")
         ;; shell-quote-argument escapes white spaces on the file name
         (async-shell-command (concat "zathura " (shell-quote-argument file))))
        ((string= ext "epub")
         (async-shell-command (concat "zathura " (shell-quote-argument file))))
        ((string= ext "rar")
         (async-shell-command (concat "file-roller " (shell-quote-argument file))))
        ((string= ext "zip")
         (async-shell-command (concat "file-roller " (shell-quote-argument file))))
        (t (dired-find-file))))
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