batch file remove all but the newest 10 files

Question

I have the following in a batch file:

:REMOLDFILES
ECHO Removing files older than 14 days. >>%LOGFILE%
cd /d %BKUPDIR%
FOR /f "skip=14 delims=" %%A IN ('DIR /a:-d /b /o:-d /t:c %1*.zip ^2^>nul') DO IF EXIST "%%~fA" ECHO "%%~fA" >>%LOGFILE%
FOR /f "skip=14 delims=" %%A IN ('DIR /a:-d /b /o:-d /t:c %1*.zip ^2^>nul') DO IF EXIST "%%~fA" DEL "%%~fA" >>%LOGFILE%
FOR /f "skip=14 delims=" %%A IN ('DIR /a:-d /b /o:-d /t:c %1*.log ^2^>nul') DO IF EXIST "%%~fA" ECHO "%%~fA" >>%LOGFILE%
FOR /f "skip=14 delims=" %%A IN ('DIR /a:-d /b /o:-d /t:c %1*.log ^2^>nul') DO IF EXIST "%%~fA" DEL "%%~fA" >>%LOGFILE%
IF [%3]==[Y] GOTO SECONDBACKUPDIR
IF [%3]==[y] GOTO SECONDBACKUPDIR
GOTO END

The problem I ran in to is that the backup was not running for a couple of weeks and ended up deleting all of my backups since they were over 2 weeks old.

What I need is for it to keep the last 10 latest backups.

Anyone have an idea how I would do that? I did not write this once since I'm not that familiar with batch files.

Answer 1

You could use FOR /F SKIP to ignore the last 10 most recently modified entries after sorting by last modified date:

for /f "skip=10 eol=: delims=" %%F in ('dir /b /o-d *.zip') do @del "%%F"