filesize output redirect in batch

Question

I'm trying to create a batch file to go through a folder and output all of the file sizes of each file in the specified folder to a .txt

So far I have the following:

@echo off
setlocal
set size=
FOR /R (F:\mediav3) %%A IN (*) DO set size=%%~zA

I'm having issues with the actual output. I've tried using echo%size% > temp.txt and a few other variations.Based on other output redirects posts I've found here but haven't managed to come up with a working solution. Any help would be greatly appreciated.

Answer 1

For anyone interested my final batch file is the following:

@echo off
setlocal
echo ^<fileinfo^>
FOR /R F:\MEDIAV3 %%A IN (*) DO echo ^<filename^>%%~fA^</filename^>>>fileinfo.xml & echo      ^<bytes^>%%~zA^</bytes^>>>fileinfo.xml & echo.>>fileinfo.xml
echo ^</fileinfo^>>>fileinfo.xml

The batch output is formatted to easily convert filenames and filesizes into and xml list. There is probably a cleaner way of doing it but this certainly worked.

Answer 2

This works

@echo off
setlocal enabledelayedexpansion
for /r F:\mediav3 %%a in (*) do (
set size=%%~za
echo !size! >>C:\sizes.txt
)