英文:
Batch loop to create folders from a list containing environment variables
问题
我有一个包含目录路径列表的文件。我想在这些位置创建目录。这些路径具有系统环境变量，使用系统属性->环境变量设置，如下所示：
$COMPLETE_DIR/type1$COMPLETE_DIR/type1$COMPLETE_DIR/type1$INCOMPLETE_DIR/type2$INCOMPLETE_DIR/type3$INCOMPLETE_DIR/type4
我创建了一个小循环，应该按上面显示的方式创建目录：
@echo offsetlocal enabledelayedexpansionset "input_file=FolderList.txt"for /F "usebackq delims=" %%a in ("%input_file%") do (set "directory_name=%%~a"echo Creating directory: !directory_name!if exist "!directory_name!" (echo Directory already exists: !directory_name!) else (mkdir "!directory_name!" || (echo Failed to create directory: !directory_name!)))echo All directories created or checked successfully.pause
但这不会展开环境变量。我尝试关闭延迟扩展，但然后for循环中断，只创建一个目录。如何部分延迟扩展？
英文:
I have a file containing a list of directory paths. I want to create directories at those locations. The paths have system environment variables, set with System Properties ->Environment Variables. Like so:
$COMPLETE_DIR/type1$COMPLETE_DIR/type1$COMPLETE_DIR/type1$INCOMPLETE_DIR/type2$INCOMPLETE_DIR/type3$INCOMPLETE_DIR/type4
I made a little loop that is supposed to create the directories as shown above:
@echo offsetlocal enabledelayedexpansionset "input_file=FolderList.txt"for /F "usebackq delims=" %%a in ("%input_file%") do (set "directory_name=%%~a"echo Creating directory: !directory_name!if exist "!directory_name!" (echo Directory already exists: !directory_name!) else (mkdir "!directory_name!" || (echo Failed to create directory: !directory_name!)))echo All directories created or checked successfully.pause
But this doesn't expand the environment variables. I tried turning off the delayed expansion, but then the for loop breaks, and only one directory is created. How do I partially delay expansion?
答案1
得分: 1
你的文件中没有批处理文件"环境变量"...在继续之前，让我们假设变量的名称只是COMPLETE_DIR而不是$COMPLETE_DIR（这是在其他语言中访问变量值的方式）。
如果你将你的文件更改为以下内容：
!COMPLETE_DIR!/type1!COMPLETE_DIR!/type2!COMPLETE_DIR!/type3!INCOMPLETE_DIR!/type2!INCOMPLETE_DIR!/type3!INCOMPLETE_DIR!/type4
...那么你可以使用完全相同的代码来使用你的变量。
这一行：
set "directory_name=%%~a"
...意味着在替换第一行读取的%%~a之后执行以下操作：
set "directory_name=!COMPLETE_DIR!/type1"
当然，在此之后，COMPLETE_DIR环境变量会像往常一样通过延迟扩展来展开！
英文:
Your file have not Batch file "environment variables"... Before continue, lets assume that the name of the variable is just COMPLETE_DIR and NOT $COMPLETE_DIR (that is the way to access the variable value in other language).
If you change your file to this:
!COMPLETE_DIR!/type1!COMPLETE_DIR!/type2!COMPLETE_DIR!/type3!INCOMPLETE_DIR!/type2!INCOMPLETE_DIR!/type3!INCOMPLETE_DIR!/type4
... then you can use your variables with your exact same code.
This line:
set "directory_name=%%~a"
... imply to execute this (after replacing the %%~a by the first line read):
set "directory_name=!COMPLETE_DIR!/type1"
Of course, after that the COMPLETE_DIR environment variable is expanded via Delayed Expansion, as usual!
答案2
得分: 0
@echo offsetlocal enabledelayedexpansionset "input_file=FolderList.txt"for /F "usebackq delims=" %%a in ("%input_file%") do (set "directory_name=%%~a"rem Expand environment variables using regular expansioncall set "expanded_directory_name=!directory_name!"echo Creating directory: !expanded_directory_name!if exist "!expanded_directory_name!" (echo Directory already exists: !expanded_directory_name!) else (mkdir "!expanded_directory_name!" || (echo Failed to create directory: !expanded_directory_name!)))echo All directories created or checked successfully.pause
请尝试使用上面的脚本。
英文:
@echo offsetlocal enabledelayedexpansionset "input_file=FolderList.txt"for /F "usebackq delims=" %%a in ("%input_file%") do (set "directory_name=%%~a"rem Expand environment variables using regular expansioncall set "expanded_directory_name=!directory_name!"echo Creating directory: !expanded_directory_name!if exist "!expanded_directory_name!" (echo Directory already exists: !expanded_directory_name!) else (mkdir "!expanded_directory_name!" || (echo Failed to create directory: !expanded_directory_name!)))echo All directories created or checked successfully.pause
Try using the above script
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