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| -rw-r--r-- | man/dired.texi | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/man/dired.texi b/man/dired.texi index dfd809c7607..f2699cfde07 100644 --- a/man/dired.texi +++ b/man/dired.texi @@ -1161,6 +1161,32 @@ if in a subdirectory.) As a special case, if point is on a directory headerline, @kbd{w} gives you the absolute name of that directory. Any prefix argument or marked files are ignored in this case. +@findex dired-compare-directories + The command @kbd{M-x dired-compare-directories} is used to compare +the current Dired buffer with another directory. It marks all the files +that are ``different'' between the two directories. It puts these marks +in all Dired buffers where these files are listed, which of course includes +the current buffer. + + The default comparison method (used if you type @key{RET} at the +prompt) is to compare just the file names---each file name that does +not appear in the other directory is ``different''. You can specify +more stringent comparisons by entering a Lisp expression, which can +refer to the variables @code{size1} and @code{size2}, the respective +file sizes; @code{mtime1} and @code{mtime2}, the last modification +times in seconds, as floating point numers; and @code{fa1} and +@code{fa2}, the respective file attribute lists (as returned by the +function @code{file-attributes}). This expression is evaluated for +each pair of like-named files, and if the expression's value is +non-@code{nil}, those files are considered ``different''. + + For instance, @code{M-x dired-compare-directories @key{RET} (> +mtime1 mtime2) @key{RET}} marks files newer in this directory than in +the other, and marks files older in the other directory than in this +one. It also marks files with no counterpart, in both directories, as +always. + +@cindex drag and drop, Dired On the X window system, Emacs supports the ``drag and drop'' protocol. You can drag a file object from another program, and drop it onto a Dired buffer; this either moves, copies, or creates a link |