gnus-mime-action-alist

gnus-mime-action-alist is a variable defined in `gnus-art.el'.
Its value is shown below.

Documentation:
An alist of actions that run on the MIME attachment.

You can customize this variable.

Value:

(("save to file" . gnus-mime-save-part)
 ("save and strip" . gnus-mime-save-part-and-strip)
 ("replace with file" . gnus-mime-replace-part)
 ("delete part" . gnus-mime-delete-part)
 ("display as text" . gnus-mime-inline-part)
 ("view the part" . gnus-mime-view-part)
 ("pipe to command" . gnus-mime-pipe-part)
 ("toggle display" . gnus-article-press-button)
 ("toggle display" . gnus-article-view-part-as-charset)
 ("view as type" . gnus-mime-view-part-as-type)
 ("view internally" . gnus-mime-view-part-internally)
 ("view externally" . gnus-mime-view-part-externally))