China DOS Union

Right now there is one server and N client machines. There is a situation now: because the client machines often automatically copy from the server to the local disk, drive D often runs out of space, and files have to be cleared manually.

So I'd like to ask: if I want to add a batch file when starting the computer, how should I do it?

The idea is as follows.

Automatically detect whether the free space on drive D is less than 8G
freedisk/d d: 8gb >null

If it is less than 8G, then delete the specified folders.
For example, folders 1 2 3 4 5. Maybe 1 was already deleted last time, so then delete them one by one in order, and check whether the disk space stays above 8G.

I'm an idiot, I only know a little bit of the simple stuff. Once it comes to loops I have no idea what I'm doing.

Can someone help me out... This is urgent... Thanks.

@echo off
for %%a in (1 2 3 4 5) do (
for /f "tokens=3 delims= " %%b in ('dir d:\^|findstr "bytes free"') do (
if %%b lss 8000000000 (
echo rd /s /q "%%a"
) else (
goto out
)
)
)
:out
exit

Ugh, after testing, the code from the poster above gives the error message "else is not expected at this time". The code below has already been fixed.
If the free space is greater than 8G, then the folder will not be deleted.
@echo off
for %%a in (1 2 3 4 5) do (
for /f "tokens=3 delims= " %%b in ('dir d:\^|findstr "free bytes"') do (
if %%b lss 8000000000 rd /s /q "d:\%%a"
if %%b gtr 8000000000 echo Disk space is already greater than 8G&goto out
)
)
:out
echo.&pause&exit /b

Thanks, then I'll go test it.

I'm a pig... Someone make a ready-made one for me... I'm a pig...
For example:
Keep disk space above 8GB... When it is below 8GB, delete D:\netgame\征途
Loop and check disk space. If the 征途 directory is already gone and the disk space is still greater than 8GB, then delete other specified folders. Loop through 10 folders.

I realized my learning is just pig-level, I only know things one at a time. When it comes to loops, I'm a complete mess of a pig...