Drives enumerator is command line (DOS) program that enumerates the current in use drive letters on a Windows system. It ignores floppy drives but does include currently mapped network drives.

It writes to STDOUT making it ideal for scripting. For example :

for /F "usebackq" %%i in (`drives`) do tree %%i:\ > tree_%%i.txt

will write a directory tree of each drive to tree_drive.txt

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