Script to copy files with variables

I need a script I can schedule that will move files out of folder A and move them to sub-folders of folder B.  If there is not yet a folder in folder B named with the MAC address the script would need to create one.

The first 12 characters in the file name are the individual MAC address of the hardware device uploading the file, following the underscore is the date the file was uploaded.

Folder A = C:\FTP SERVER
Folder B = C:\Machine DATA
Subfolders of Folder B = C:\Machine DATA\0027AF110121   One folder for each mac address
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Frosty555Connect With a Mentor Commented:
In batch, this is pretty easy because the beginning of each filename is the same length. You can get the substring of the first 12 characters of the file, and use that to create the directory and move the file into it.

@echo off

setlocal enableDelayedExpansion

set foldera=C:\temp\mac
set folderb=C:\temp\mac\folders

pushd %foldera%
for %%F in (*.zip) do (
   set file=%%F
   set dir=%folderb%\!file:~0,12!   

   echo Moving !file!  into  !dir!

   if not exist !dir! mkdir !dir!
   move !file! !dir!

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Some notes:

1) Delayed expansion is very important, the environment variables that are references with "!" instead of "%" characters (e.g. !file!) are environment variables that are using delayed expansion.

2) The expression "!file:~0,12!"  means "substring of the first 12 characters of !file!"
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