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Batch file deletes all but the newest 10 files

The batch file has the following:

: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 into was that the backup didn't run for a couple of weeks and ended up deleting all of my backups as they were over 2 weeks old.

I need to keep the last 10 most recent backups.

Anyone have an idea how I would go about this? I didn't write this once as I am not familiar with batch files.

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2 answers


You can use FOR /F SKIP

to ignore the last 10 most recently modified entries after sorting by the last modified date:



for /f "skip=10 eol=: delims=" %%F in ('dir /b /o-d *.zip') do @del "%%F"
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You can list files in reverse order by modification date using the command DIR

. Then you just tell your loop FOR

to skip the first 10 ( note ) where your zip is showing 14

but you are asking for 10) records, so all processed ones are deleted.

REM Update to 14 if needed.
SET Keep=10
FOR /F "usebackq tokens=* skip=%Keep% delims=" %%A IN (`DIR *.zip /B /O:-D /A:-D`) DO DEL "%%A">>%LOGFILE%

Since you are not familiar with the package, you can test this command (to see what will be removed, not remove it) by replacing it DEL

with ECHO

.



Edit

Since you are also processing log files, why not just delete them in one cycle?

REM Update to 14 if needed.
SET Keep=10
FOR /F "usebackq tokens=* skip=%Keep% delims=" %%A IN (`DIR *.zip /B /O:-D /A:-D`) DO (
    ECHO Processing: %%~nA
    REM Delete ZIP file.
    DEL "%%A"
    REM Delete LOG file.
    DEL "%%~nA.log"
)>>%LOGFILE%
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