Question

The application creates .mta files (with exactly same name) of all multimedia files in my HDD. What I want to do is to check all sub-folders of root folder if there is no multimedia file associated with some .mta then delete it.

Detailed example. Lets say we have files

01.mp3
01.MP3.mta
02.mkv
02.MKV.mta
03.jpg
03.JPG.mta
04.MP4.mta     <<==

As you see the last .mta has no original file. I want to delete last file.

I don’t know if it’s possible with cmd. But following function doesn’t work. Please take a look

For /r %%i in (*.mta) do call :nomta %%i
pause

goto end

:nomta
set stem=%1:.mta=%

set original=%stem%.mta
if not exist %original% do exit /B
if not exist %stem% do del /a /Q  %1

goto :EOF 

:end

echo done
PAUSE

Answer 1

You can use a for command to do this with dir /a feeding it both hidden and non-hidden filenames. Here’s an example:

C:\temp\z\z>attrib *
A            C:\temp\z\z\foo.bar.mta
A   H        C:\temp\z\z\h2.mp4.mta
A            C:\temp\z\z\hid.mp4
A   H        C:\temp\z\z\hid.mp4.mta
A            C:\temp\z\z\zoo.bar
A            C:\temp\z\z\zoo.bar.mta

C:\temp\z\z>for /f %F in ('dir /b/a *.mta') do if not exist "%~nF" echo %F >> z

C:\temp\z\z>type z
foo.bar.mta
h2.mp4.mta

so replacing the echo with a del should achieve your target.