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Код:

@echo off

set "path_1=D:\Rabota\1\"
set "path_2=D:\Rabota\2\"

for /f "tokens=1 delims=_" %%a in ('dir "%path_2%" /b/a-d') do (
   if not exist "%path_1%%%a" (md "%path_1%%%a" & move "%path_2%%%a*" "%path_1%%%a")
)