- @kbd{j} (@code{dired-goto-file}) moves point to the line that
-describes a specified file or directory.
+ @kbd{j} (@code{dired-goto-file}) prompts for a file name using the
+minibuffer, and moves point to the line in the Dired buffer describing
+that file.
+
+@cindex searching Dired buffers
+@vindex dired-isearch-filenames
+ @kbd{M-s f C-s} (@code{dired-isearch-filenames}) performs a forward
+incremental search in the Dired buffer, looking for matches only
+amongst the file names and ignoring the rest of the text in the
+buffer. @kbd{M-s f M-C-s} (@code{dired-isearch-filenames-regexp})
+does the same, using a regular expression search. If you change the
+variable @code{dired-isearch-filenames} to @code{t}, then the
+usual search commands also limit themselves to the file names; for
+instance, @kbd{C-s} behaves like @kbd{M-s f C-s}. If the value is
+@code{dwim}, then search commands match the file names only when point
+was on a file name initially. @xref{Search}, for information about
+incremental search.