windows - 使用备份将文件复制到目标 - 批处理文件

Question

我需要一个批处理命令，它将在复制到目标后保留文件的备份。

假设我在源目录中有 2 个文件：

"1.txt" which has content (abc)  
"2.txt" which has content (abc)  

我在目标目录中有 4 个文件：

"1.txt" which has content (xyz)  
"2.txt" which has content (xyz)  
"5.txt" which has content (xyz)  
"6.txt" which has content (xyz)    

现在我必须将所有文本文件从源目录复制到目标目录，但在这种情况下，由于目标目录已经存在两个文本文件（1.txt 和 2.txt），我们需要在从源复制之前对其进行备份文件夹（可能类似于 1.txt.bkup 2.txt.bkup）。

从源复制到目标后，我的目标的内容应该是：

"1.txt.bkup" which has content (xyz)  
"2.txt.bkup" which has content (xyz)  
"5.txt" which has content (xyz)  
"6.txt" which has content (xyz)  
"1.txt" which has content (abc)  
"2.txt" which has content (abc)    

如何才能做到这一点？希亚姆

Answer 1

尝试这个：

cd /d sourcefolder
for %%a in (*.txt) do (
    if exist "destinationfolder\%%~a" (
        move /y "destinationfolder\%%~a" "destinationfolder\%%~a.bkup"
    )
    copy "%%~a" "destinationfolder\%%~a"
)