批处理文件有选择地将文件复制到相同的文件夹树

Question

我有 2 个相同的文件夹树，我们称它们为 C:\First 和 C:\Second，有许多子文件夹。 C:\First 在许多子文件夹和子文件夹中有许多 XML 文件。 C:\Second 刚刚创建了文件夹树。

我想遍历 C:\First\* 中的所有 XML 个文件，并将其放在 C:\Second 中的等效位置。

但首先我要检查 C:\Current 文件夹中是否存在同名文件（那里没有子文件夹），在这种情况下，我会将 C:\Current 中的文件复制到正确的位置C:\Second.

中的子文件夹

换句话说，我想将整个结构和文件从 C:\First 复制到 C:\Second，但我想使用 C:\Current 中可能存在也可能不存在的最新版本.而且，在 C:\Current 中有很多我不关心的文件。

示例： C:\Current 有这些文件：

a.xml
b.xml
1.xml
c.xml
d.xml
e.xml
2.xml
f.xml
g.xml
3.xml

在 C:\First 中，我将 a.xml, b.xml, c.xml, d.xml, e.xml, f.xml, g.xml 分散在其子文件夹中。

我希望我不会太混乱...

Answer 1

当问题描述得当，同样的问题描述可以作为编写程序的规范。在你的情况下，你有这样的描述：

I want to go through all XML files in C:\First* and put it in it's equivalent place in C:\Second.

But first I want to check if a file with the same name exists in the C:\Current folder

"But first"不是用来写程序的。您只需要首先写下第一件事！例如：

I want to go through all XML files in C:\First*. I want to check if a file with the same name exists in the C:\Current folder in which case I will copy the one from C:\Current to the proper sub-sub-sub folder in C:\Second. Otherwise put the file from C:\First in it's equivalent place in C:\Second.

下面的伪代码是如何将您的原始问题描述转化为程序的示例：

rem I have 2 identical folder trees, let's call them C:\First and C:\Second, with many subfolders.
rem C:\First has many XML files in many sub and sub-sub folders. C:\Second just has the folder tree created.

rem I want to go through all XML files in C:\First\* 
for /R inside C:\First with all *.XML files do (
   rem But first I want to check if a file with the same name exists in the C:\Current folder (no subfolders there)
   if exist "C:\Current folder\place here just the name of the file from the for command" (
      rem in which case I will copy the one from C:\Current to the proper sub-sub-sub folder in C:\Second.
      set properFolder=place here the sub-sub-sub folder from the for command
      set properFolder=change "C:\First" by "C:\Second" in properFolder
      copy "C:\Current folder\just the name" "!properFolder!"
   ) else (
      rem ... and put it in it's equivalent place in C:\Second. 
      set properFolder=place here the sub-sub-sub folder from the for command
      set properFolder=change "C:\First" by "C:\Second" in properFolder
      copy "the file from for command" "!properFolder!"
   )
)

如果分析这段代码，您会发现获取 properFolder 的行在两部分中是相同的，因此一种更简单的方法是在 if 命令之前仅获取一次 properFolder。

您可以使用此伪代码作为编写批处理文件的起点。

批处理文件有选择地将文件复制到相同的文件夹树

Batch File to Selectively Copy Files To an Identical Folder Tree

batch-file