blocks|key|983713|text|据我所知，没有办法让它不被覆盖。但/Y会将其覆盖。/I会去掉文件/字典提示符。有关所有选项，请参阅xcopy+/?|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|983714|entityMap^0|1D|8|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

No way to make it NOT overwrite as far as I know. but /Y will make it overwrite. and /I will get rid of the file/dict prompt. See <code>xcopy /?</code> for all options

blocks|key|768695|text|也可以使用replace命令。它有两种模式:添加不存在的文件或替换存在的文件。你想要前一种模式：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|768696|replace+<path1>+<path2>+/A|code-block|syntax|javascript|768697|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can also use the replace command. It has two modes: to add files that don't exist there or replace files that do exist. You want the previous mode:

<pre><code>replace &lt;path1&gt; &lt;path2&gt; /A
</code></pre>

blocks|key|768767|text|我使用xcopy+/d取得了很好的结果。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|768768|它将复制较新的文件，并且由于我们可以假设现有文件具有相同的时间戳，因此您将只复制不存在的文件。|768769|entityMap^0|3|8|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|N|8|@]|D|@]|E|$]]]|I|$]]

I have good results with <code>xcopy /d</code>.

It will copy NEWER files, and since we can assume that existing files have same time-stamp, you will copy only files that don't exist.

blocks|key|983860|text|我必须复制和重命名文件，所以我得到了关于创建文件或目录的提示。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|983861|这是我用的，相当“黑客”的方式：|983862|ECHO+F+%7C+XCOPY+/D+"C:\install\dummy\dummy.pdf"+"C:\Archive\fffc810e-f01a-47e8-a000-5903fc56f0ec.pdf"|code-block|syntax|javascript|983863|XCOPY将使用"F“表示应将目标创建为文件：|983864|C:\install>ECHO+F+++%7C+XCOPY+/D+"C:\install\dummy\dummy.html"+"C:\Archive\aa77cd6e-1d19-4eb4-b2a8-3f8fe60daf00.html"
Does+C:\Archive\aa77cd6e-1d19-4eb4-b2a8-3f8fe60daf00.html+specify+a+file+name+or+directory+name+on+the+target
(F+=+file,+D+=+directory)?+F
C:\install\dummy\dummy.html
1+File(s)+copied|983865|我还验证了此命令不会影响现有文件。(你也应该:-)|983866|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

I had to copy AND rename files, so I got the prompt about creating a file or a directory.

This is the, rather "hackish" way I did it:

<pre><code>ECHO F | XCOPY /D "C:\install\dummy\dummy.pdf" "C:\Archive\fffc810e-f01a-47e8-a000-5903fc56f0ec.pdf"
</code></pre>

XCOPY will use the "F" to indicate it should create the target as a file:

<pre><code>C:\install&gt;ECHO F | XCOPY /D "C:\install\dummy\dummy.html" "C:\Archive\aa77cd6e-1d19-4eb4-b2a8-3f8fe60daf00.html"
Does C:\Archive\aa77cd6e-1d19-4eb4-b2a8-3f8fe60daf00.html specify a file name or directory name on the target
(F = file, D = directory)? F
C:\install\dummy\dummy.html
1 File(s) copied
</code></pre>

I've also verified this command leaves existing files alone. (You should too :-)

blocks|key|768877|text|以防其他人发现:+robocopy+x:\sourcefolder+Y:\destfolder+/s+/e+/r:0+/z|type|unstyled|depth|inlineStyleRanges|entityRanges|data|768878|比xcopy好得多，甚至在最后提供了一个表，通知您任何失败或跳过的文件。不会提示不覆盖。|768879|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

just in case anyone else finds this: 
robocopy x:\sourcefolder Y:\destfolder /s /e /r:0 /z

much better than xcopy, even gives you a table at the end informing of any failed or skipped files. Doesn't prompt to not overwrite.

blocks|key|768912|text|以下命令复制文件和文件夹，但不覆盖已存在的文件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|768913|xcopy+"*.*"+"C:\test\"++/s+/y+/d|code-block|syntax|javascript|768914|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Following command copy files and folder but not override file if already exist.

<pre><code>xcopy "*.*" "C:\test\" /s /y /d
</code></pre>

I'm sending a commands to a remote computer in order to have it copy a file.
I want the file to be copied, but not to overwrite the previous file with the same name (if it exists).
I also need the command to run without any prompts (xcopy likes to prompt whether the target name I've specified is file or directory, and it will also prompt about overwriting a file).

Having XCopy copy a file and not overwrite the previous one if it exists (without prompting)

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在向一台远程计算机发送命令，以便让它复制一个文件。我希望复制该文件，但不要覆盖具有相同名称的前一个文件(如果它存在)。我还需要在没有任何提示的情况下运行该命令(xcopy喜欢提示我指定的目标名称是file还是directory，它还会提示覆盖文件)。

问让XCopy复制一个文件并不覆盖存在的前一个文件(不提示)
EN

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问让XCopy复制一个文件并不覆盖存在的前一个文件(不提示)EN