批量复制，如果他们在目标存在覆盖文件

Question

我在这里找到了以下批处理脚本在SE：

Batch Script - IF EXIST copy to %localappdata% error

IF EXIST "%localappdata%\foldername\filename" (COPY /Y "filename" "location") 

如何修改脚本在一个完整的文件目录操作？我试过，但没有奏效：

IF EXIST "temp\*.*" (COPY /Y "artwork\*.*" "temp") 

Answer 1

xcopy命令包括更新开关只复制已经存在于目标文件夹中的文件。

xcopy /y /u "artwork\*" "temp" 

Answer 2

你可以尝试这样的事情：

@echo off 
set "FolderSource=%localappdata%\FolderTest" 
Set "Target=%~dp0Location" 
IF Not EXIST "%FolderSource%" echo "%FolderSource%" does not exist & pause>nul & exit 
If Not Exist "%Target%" MD "%Target%" 
For /f "delims=" %%a in ('Dir /b /s "%FolderSource%\*.*"') Do (
    IF EXIST "%Target%\%%a" (COPY /Y "%%a" "%Target%" 
     ) ELSE (COPY "%%a" "%Target%" 
    ) 
) 
pause>nul