Running command line on multiple music files

问题:

I am using a CLI program called metaflac (http://flac.sourceforge.net/documentation_tools_metaflac.html) to remove padding from various FLAC music files on my computer. Using the following command in a batch file (with metaflac.exe in the same folder) successfully completes this task for an individual file:

metaflac --dont-use-padding --remove --block-type=PADDING "filename.flac"

I have to do this for several thousand files and don't want to do it all manually/individually. Is there an easy way for me to simply direct this command to a directory and have it act upon every file in there? This would save me a lot of time.

Thanks!

I am using Windows 7 64-bit.

回答1:

Sure. You can do it with a one-liner from a cmd prompt.

for /f "delims=" %I in ('dir /s /b *.flac') do metaflac --dont-use-padding --remove --block-type=PADDING "%I"

If you're putting this into a .bat script, change %I to %%I in both places.

回答2:

for /f "delims=" %%i in ('dir /s /b /a-d "C:\start\directory\*.flac"') do (
 metaflac --dont-use-padding --remove --block-type=PADDING "%%~fi"
)

should do this for you, scanning the entire directory tree from "C:\start\directory" for all .flac files and executing metaflac against each with your parameters.

Suggest you try a small copied subtree first, for safety's sake.