find number of removable drives

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Hi,
I am a Novice but recently had a problem of running a batch file on the 'n' number of usb disk attached leaving the local disks. If anybody can help in
a batch script file to find the number of disk attached to the system , run the batch file in n number of disk. run the batch file on all the removable disks and exits.

Thanks in anticipation

Posted 29-Feb-12 21:19pm

aress2010

Updated 29-Feb-12 21:21pm

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Sergey Alexandrovich Kryukov · Answer 1 · 2012-12-27T19:30:00

Basically, it all is done via WMI: http://en.wikipedia.org/wiki/Windows_Management_Instrumentation[^].

In PowerShell (highly recommended):

$drives = Get-WmiObject Win32_Volume | Where { $_.DriveType -eq 2 }

Here, drive type 2 means "removable drive"

In legacy batch:

@wmic logicaldisk get volumeName, description, deviceId

Add some code to count them.

Please see:
http://technet.microsoft.com/en-us/library/bb742610.aspx[^]

Good luck,

—SA