PTT 檔名更改

@echo off
setlocal EnableDelayedExpansion
pushd %CD%

set /A fname=0
set base_path=%CD%
set move_path=
set new_fname=


for /D %%d in (*) do (
    cd %%d

    set /A fname=0
    for %%f in (*) do (
        rem 檔案流水號*2-1
        set /A fname=%%~nf
        set /A fname=!fname!*2-1

        set new_fname=%%d_!fname!%%~xf
        set move_path=%base_path%\!fname!
        rem 檢查輸出目錄 !work_dir! 是否存在，不存在就建立...
        if not exist !move_path!\NUL (
            mkdir !move_path!
        )
        ren %%f !new_fname!
        move !new_fname! !move_path!
    )
    cd ..
)

popd
endlocal