flashercs

@echo off
setlocal EnableDelayedExpansion
set "dir=ABCDEFGHIJKLMN"
md "%dir%\"
set "fn="
set /a "n=0"
for %%A in (*.*) do (
    if "%%~nA"=="!fn!" (
        set /a "n=!n!+1"
    ) else (
        if !n! gtr 1 (
            move "!fn!.*" "%dir%\"
        )
        set "fn=%%~nA"
        set /a "n=1"
    )
)
if !n! gtr 1 (
    move "!fn!.*" "%dir%\"
    )
endlocal
pause
exit /b
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