对于循环在CMD ...如何循环A到Z（驱动器字母） [英] For loop in CMD... how to loop A to Z (for drive letters)

问题描述

如何在Windows命令行（cmd.exe）中使用for循环驱动有效的驱动器号从A到Z？

驱动器根文件夹中的所有文件应该是（概念）：

f：\

或近似现有功能：

for / L in（A，Z，1）do echo％f：\

解决方案

  for %% p in（ABCDEFGHIJKLMNOPQRSTU VWXYZ）如果不存在，则为do％p ：\\\
ul set FREEDRIVELETTER = %% p 
  

编辑：这里是一个PowerShell方式，不知道if

  
 65..90 | foreach {[char] $ _; Write-HostDo Something} 
  

/ p>

  97..122 | foreach {[char] $ _; Write-HostDo Something} 
  

批处理文件。

  @ECHO OFF 
 start / b / wait powershell.exe97..122 | foreach {$ a = [char] $ _; dir $ a：\}
 PAUSE 
  

How can I get drive the valid drive letters from A to Z with the "for loop" in windows command line (cmd.exe)?

Example, list all files in a drive root folder, should be something like (conceptual):

for %f in (A..Z) do dir %f:\

or aproximating existing functionality:

for /L in (A, Z, 1) do echo %f:\

解决方案

Close, but it's more like this.

for %%p in (A B C D E F G H I J K L M N O P Q R S T U V W X Y Z) do if not exist %%p:\nul set FREEDRIVELETTER=%%p

EDIT: Here is a powershell way, not sure if off-topic for your needs

Loops the Upper Case Alphabet

65..90 | foreach {[char]$_;Write-Host "Do Something"}

or Lower Case Alphabet

97..122 | foreach {[char]$_;Write-Host "Do Something"}

Maybe this will work from a batch file.

@ECHO OFF
start /b /wait powershell.exe "97..122 | foreach {$a=[char]$_ ;dir $a:\}"
PAUSE

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