cmd - export server log file from event viewer and save into a folder without overwrite the file -

i want export server log file event viewer , save folder without overwrite file.

then set schedule using task schedule trigger batch file automatic periodic update. (i new in wevtuitil , cmd command)

example:

application_event1.evtx application_event2.evtx application_event3.evtx application_event4.evtx 

here script bat file

//i export log file event viewer

wevtutil epl application e:\a\testing_application.evtx 

follow script make evtx file name increase number

@echo off setlocal enableextensions enabledelayedexpansion set "source=e:\a" if exist "%source%\*.evtx" ( set  increase=0 set  increase=!increase!+1 ren "%source%\*.evtx" "*.!increase!.evtx" ) endlocal 

result: testing_application.0+1,testing_application.0+1.0+1

you missing /a in set because it's arithmetic operation. more type set /?

also missing for-loop too. more type for /?

try this.

@echo off setlocal enableextensions enabledelayedexpansion set "source=e:\a"  set increase= /f "delims=" %%a in ('dir /b /a-d "%source%\*.evtx"') (     set /a increase+=1     echo ren "%%~a" "%%~na!increase!%%~xa" ) endlocal 

i seem wrong in thought trying achieve.

here attempt:

@echo off  set "source=e:\a" set "filename=testing_application" wevtutil epl application e:\a\testing_application.evtx  /f "tokens=2 delims=-." %%a in (   'dir /b "%source%\%filename%*.evtx" ^|sort /r ^|findstr /r [0-9]') (     set "num=%%a"    goto done )  ren "%source%\%filename%.evtx"  "%filename%-001.evtx" exit /b 0  :done rem :: remove zeros in front of numbers before incrementing /f "tokens=* delims=0" %%a in ("%num%") set num=%%a  set /a num+=1 set incr=000%num%  ren "%source%\%filename%.evtx"  "%filename%-%incr:~-3%.evtx"  exit /b 0 

the solution found incrementing number zeros in front based on this

which zeros in front required sort files correctly.