emacs 中 dired-do-redisplay 的工作流程/用例？

Question

dired-do-redisplay的用例是什么？ 我正在閱讀 Emacs Dired 文檔並試圖了解用例/工作流程。 請參閱Dired 文檔

Answer 1

文檔字符串（ Ch f ）清楚地說明了該命令的用途，我認為：

,----
| `dired-do-redisplay` is an interactive autoloaded compiled Lisp function
| in `dired-aux.el`.
| 
| It is bound to l.
| 
| `(dired-do-redisplay &optional ARG TEST-FOR-SUBDIR)`
| 
| Redisplay all marked (or next `ARG`) files.
| If on a subdir line, redisplay that subdirectory.  In that case,
| a prefix arg lets you edit the `ls' switches used for the new listing.
| 
| Dired remembers switches specified with a prefix arg, so that reverting
| the buffer will not reset them.  However, using `dired-undo` to re-insert
| or delete subdirectories can bypass this machinery.  Hence, you sometimes
| may have to reset some subdirectory switches after a `dired-undo`.
| You can reset all subdirectory switches to the default using
| `M-x dired-reset-subdir-switches`.
| See Info node `(emacs)Subdir switches` for more details.
`----

例如，Dired 顯示不會自動更新以反映 Emacs 之外的更改（除非您設置了自動恢復選項）。 此命令實際上僅還原某些文件或子目錄列表的列表。 對於子目錄列表，它允許您提供不同的ls開關，因此您可以使用這些指定的開關重新列出。