获取子文件夹的大小只使用批处理命令 [英] Get size of the sub folders only using batch command

问题描述

我通过我的基本文件夹名（ C：\\用户\\ IAM \\桌面\\ MHW \\ * ）的脚本，并希望得到底层子文件夹的大小。下面code不工作。需要帮助解决它。

I am passing my base folder name (C:\Users\IAM\Desktop\MHW\*) in script and want to get the size of the underlying sub folders. The below code is not working. Need help to fix it.

@echo off
setLocal EnableDelayedExpansion
FOR /D %%G in ("C:\Users\IAM\Desktop\MHW\*") DO (
set /a value=0
set /a sum=0
FOR /R "%%G" %%I IN (*) DO (
set /a value=%%~zI/1024
set /a sum=!sum!+!value!
)
@echo %%G: !sum! K
)
pause

从我的理解，值%% G不获取传递给第二个for循环。

From my understanding, the value "%%G" is not getting passed to the second FOR loop.

推荐答案

可惜你不能传递给为/ R 由另一个循环<$ C $根目录路径C>为变量，也不是一个delayedly扩展型变量，你必须使用一个正常扩张变量（％VAR％）或参数引用（％〜1 ）。

Unfortunately you cannot pass a root directory path to a for /R loop by another for variable nor a delayedly expanded variable, you must use a normally expanded variable (%var%) or an argument reference (%~1).

您可以帮助自己走出经由呼叫为/ R 循环在子例程从主程序调code>。通过该变量保存的结果和根目录路径，通过作为参数，并扩大他们像％〜1 和％〜2 中的子程序，分别

You can help yourself out by placing the for /R loop in a sub-routine that is called from the main routine via call. Pass the variable holding the result and the root directory path over as arguments and expand them like %~1 and %~2 in the sub-routine, respectively.

@echo off
setlocal EnableDelayedExpansion
for /D %%G in ("C:\Users\IAM\Desktop\MHW\*") do (
    rem Call the sub-routine here:
    call :SUB sum "%%~G"
    echo %%~G: !sum! KiB
)
pause
endlocal
exit /B

:SUB  rtn_sum  val_path
rem This is the sub-routine expecting two arguments:
rem the variable name holding the sum and the directory path;
set /A value=0, sum=0
rem Here the root directory path is accepted:
for /R "%~2" %%I in (*) do (
    rem Here is some rounding implemented by `+1024/2`:
    rem to round everything down, do not add anything (`+0`);
    rem to round everything up, add `+1024-1=1023` instead;
    set /A value=^(%%~zI+1024/2^)/1024
    set /A sum+=value
)
set "%~1=%sum%"
exit /B

注意设置/ A 能够仅在32位房符号整数arithetics的，因此，如果一个文件是2吉布大或以上，或结果之 2超出 ³¹ - 1，您会收到错误的结果。

Note that set /A is capable of signed integer arithetics in a 32-bit room only, so if a file is 2 GiB big or more, or the result in sum exceeds 2³¹ - 1, you will receive wrong results.

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