Script de lote: iterar sobre letras de unidade?

4

Em scripts em lote do Windows, como posso iterar todas as letras de unidade que correspondem a volumes físicos ou compartilhamentos mapeados?

    
por kdt 15.04.2010 / 15:23

7 respostas

4

Também vai sugerir uma mudança de idioma, mas para Powershell em vez de VBS.

Get-PSDrive -PSProvider FileSystem

É a onda do futuro ...

    
por 15.04.2010 / 16:10
2

Talvez existam ferramentas melhores agora, mas costumava haver o comando fsutil (WinXP).

fsutil fsinfo drives

isso retorna todas as unidades no sistema.

    
por 15.04.2010 / 15:34
1

Isso deve funcionar. ele cria uma matriz de todas as unidades conectadas que podem ser acessadas de um loop for. você pode fazer o que quiser com as unidades agora. Eu forneci dois exemplos para mostrar como funciona.

@echo off
setlocal enableDelayedExpansion
cls

REM getting the output from fsutil fsinfo drives and putting it in the ogdrives variable
FOR /F "tokens=* USEBACKQ" %%F IN ('fsutil fsinfo drives') DO (
SET ogdrives=%%F
)
REM making the drives variable the same as the ogdrives variable so it can be manipulated
set drives=!ogdrives!

REM formating the out so that it looks like 1+1+1+... for every drive that is connected
set drives=!drives:Drives^: =!
set drives=!drives:^:\=1!
set drives=!drives: =+!

REM still formating to find out how many drives there are, this bit gets rid of any letters there are
set charms=0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
for /L %%N in (10 1 62) do (
for /F %%C in ("!charms:~%%N,1!") do (
set drives=!drives:%%C=!
)
)
REM last for finding out the number, this removes the last characters since it is a leading + that shouldnt be there
set drives=!drives:~0,-1!
REM num is now the variable that contains the number of drives connected
set /a num=!drives!

REM reseting the drives variable to the original output so it can be manipulated again
set drives=!ogdrives!
REM this time it is being formated to list the drives as a solid string of drive letters like ABCD
set drives=!drives:Drives^: =!
set drives=!drives:^:\=!
set drives=!drives: =!

REM this is to iterate through that string of drive letters to seperate it into multiple single letter variables that are correlated to a number so they can be used later
:loop
REM the iter variable holds how many times this has looped so that when it hits the final drive it can exit
set /a iter=!iter!+1
REM the pos variable is the position in the string of drive letters that needs to be taken out for this iteration
set /a pos=!iter!-1

REM this sets the driveX variable where X is the drives correlated number to the letter of that drive from the long string of drive letters by using the pos variable
set drive!iter!=!drives:~%pos%,1!

REM this is checking to see if all drives have been assigned a number and if it has it will exit the loop
if !iter!==!num! goto oloop
goto loop
:oloop


REM drives are stored in variables %driveX% where X represents the drive number
REM the number of drives are stored in the %num% variable
REM below is an example for iterating through drives

REM this is an example of how to use the information gathered to iterate through the drives
REM we are using a for loop from 1 to the number of drives connected
for /L %%n in (1 1 !num!) do (
REM for every drive that is connected this will be ran
REM %%n contains a number which will increase since its a for loop
REM the drive driveX variable can then be used since drive1=A and drive2=B etc
echo drive %%n is !drive%%n!
REM you can see how i have embedded a variable inside a variable to create an array of sorts.
)
pause
exit
REM the actual variable names are drive1 drive2 drive3 but so that we can iterate through them we can just use a for loop and put the number in the variable
REM one way you can use this is with the where command since it will only search one drive at a time
REM you can do this like this 

for /L %%n in (1 1 !num!) do (

where /R !drive%%n!:\ *.txt

)

REM this will return a list of all txt files in the entire system since it searches all drives.
    
por 03.09.2018 / 02:57
0

Será muito mais fácil e muito mais útil usar o VBScript nesse caso. link

    
por 15.04.2010 / 15:25
0

Você pode persuadir

wmic volume get driveletter

para ser sua fonte de dados aqui. A iteração pode ser feita com o padrão for /f .

    
por 18.04.2010 / 15:10
0

Você pode tentar:

for %%i in (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 exist %%i: @echo %%i:

A principal limitação deste código é a existência de uma unidade de CD / DVD sem disco. Isso faz com que uma carpa para o usuário insira um disco. Se você tiver todas as unidades de CD / DVD mapeadas para Z: você pode evitar a carpa removendo o Z final no conjunto.

Rob

    
por 19.04.2010 / 20:38
-2

Isso funciona para mim a partir de msys, você não especificou qual interpretador de bash você está usando (os principais seriam msys ou cygwin).

for i in 'mount|grep "^.: "|cut -c1'; do
  echo iterating over drive $i
done
    
por 15.04.2010 / 17:50