Erdene Batjargal :
how to create 20130101.log ...20131231.log file in batch
assuming you want to use the current date:
for /f "tokens=2-4 delims=/ " %%a in ('date /T') do (
set varDay=%%a
set varMonth=%%b
set varYear=%%c
)
@echo %varYear%%varMonth%%varDay%.log