用于根据名称复制文件的批处理脚本 [英] Batch script for copying files based on name

问题描述

基本上，我想编写一个执行以下操作的批处理脚本-我有两个文件夹，A和B ... A有10个文件，B有100个文件。我想比较每个文件夹中的文件名和如果B中的名称与A中的名称相同，则将它们复制到文件夹A并覆盖原始文件。

Basically I want to write a little batch script that does the following - I have two folders, A and B... A has 10 files and B has 100. I want to compare the names of the files in each folder and if any in B have the same name as in A, then to copy them to folder A and overwrite the original file.

我试图通过 for命令，但随后我必须在IF后面加上一个IF，以比较我不知道如何正确表达的文件名

I was trying to start off by doing a "for" command on folder A but then I would have to follow that with an IF to compare the filenames which I have no idea how to express correctly

    for /r "C:\folderA" %%a in (*.filetype) do (...)

很抱歉，但是批处理脚本没用。我发现有两个主题涉及相似的问题，但是rly没有足够的答案来提供帮助。

Sry but I am useless with batch scripting. I found a couple of threads covering similar questions, but rly didn't follow the answers enough to help.

这难吗？比较两个文件名的其他线程看起来有点复杂。

Is this difficult? The other threads comparing two filenames looked kinda complicated.

感谢您的帮助：）

推荐答案

尝试一下：

xcopy /s /u /y /i /r /c "C:\folderB\*.filetype" "C:\folderA"

• / s 复制文件夹和子文件夹


• / u 仅复制文件预先存在于两个文件夹中


• / y 禁止覆盖文件的提示


• / i 告诉xcopy目标是文件夹


• / r 忽略 READONLY 属性，以防万一（这是可选的）


• / c 继续复制，即使错误发生（这是可选的）


• /s copies folders and subfolders
• /u copies only file that pre-exist in both folders
• /y suppresses prompts on overwriting files
• /i tells xcopy that destination is a folder
• /r ignores READONLY attribute just in case (this is optional)
• /c continues copying even if errors occur (this is optional)

有关xcopy的更多信息，请参见此处（或 xcopy /？）

More information on xcopy can be found here (or xcopy /?)

如果这对您不起作用，则类似s应该怎么做：

If that does not work for you then something like this should do:

for /r "C:\folderA" %%a in (*.filetype) do if exist "C:\folderB\%%~nxa" copy /y "C:\folderB\%%~nxa" "C:\folderA\%%~nxa"

这是它的作用：



• 如果存在检查文件是否存在
  
  
  
  
  • 它检查的路径由文件夹A组成在 folderB
  
  
  • if exist checks if a file exists
    • the path it checks is composed from folderA path and name and extension of the file found in folderB
    
    
    • c $ c> folderB
    
    
    • 到 folderA
    $ b中找到的相似名称的文件$ b
    • from original file found in folderB
    • to similar-named file found in folderA

    %%〜dpnxa 语法如下：

    
    
    • %% SOMETHINGa 表示这是一个for循环变量
    
    
    • 〜禁止在文件名两边加上双引号（我们将提供自己的双引号）
    
    
    • d 用于磁盘（ c：）
    
    
    • p 用于包含文件夹的路径（ \folderA\ ）
    
    
    • n 是文件名（即自述文件）
    
    
    • x 用于扩展（即 .txt ）
    
    
    • %%SOMETHINGa means this is a for-loop variable
    • ~ suppresses double quotes around file names (we will provide our own ones)
    • d is for disk (c:)
    • p is for path to containing folder (\folderA\)
    • n is for name of the file (i.e. readme)
    • x is for extension (i.e. .txt)

    您可以随意混合和匹配它们。更多信息，请此处，或尝试来获取/？

    You can mix and match those as you like. More info is here or try for /?

    如果逻辑需要更复杂，我建议使用（ ）括号+ 延迟扩展或 call：label （ call /？）

    If logic needs to be more complicated I suggest either using ( ) brackets + delayed expansion or call :label (call /?)

    更新：更正了 FolderA 和 FolderB

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