each10days.bat

@echo off
rem this batch will call some batch file "updateIt.bat" at each 10 days
rem one line of log.txt is like 2017012 ("2017 Jan 20thday") and so on, if the last line of log.txt 
rem is different from now, the next batch file will ba called. 
rem So we can invoke updateIt.bat at each 10 days
rem Good for some cleanup acitivity

FOR /F "delims=," %%a IN (log.txt) DO (
  IF  %%a == %date:~0,4%%date:~5,2%%date:~8,1% (
    goto DONE
  )
)
echo %date:~0,4%%date:~5,2%%date:~8,1%>> log.txt
echo "10 days have passed" %date:~0,4%%date:~5,2%%date:~8,1%
call updateIt.bat

:DONE