How add a prefix to file names? - Programmers Heaven

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How add a prefix to file names?

PeytonPeyton Atlanta, GeorgiaPosts: 2Member

I want to add the same prefix to a large number of files, all with the same extension, but all having long file names with spaces in them. I found the following code at http://www.lagmonster.org/docs/DOS7/z-ren1.html:

LFNFOR On FOR %v IN (*.txt) DO REN %v abc%v.x REN *.x *

When I try it without LFNFOR, I get an error message - not surprising since I didn't specify long file names.

However, when I key in LFNFOR, I get an error message just from typing that.

My PC is 64-bit Windows 7.

Thanks in advance for your help.

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