Listing 1: Automatically Name Log Files

REM Get current date and time into environment
variables and use for dated log files.

REM Get date variables.
for /F "tokens=1-4 delims=/ " %%i in ('date /t') do (
  set day=%%i
  set mm=%%j
  set dd=%%k
  set yy=%%l
)

REM Get time variables.
for /F "tokens=1-2 delims=: " %%i in ('time /t') do (
  set hour=%%i
  set min=%%j
  set Time=%%i%%j
)

REM Get minutes without A.M. or P.M.
set ZMin=%min:~0,2%

REM Create new DateNow environment variable.
set DateNow=%YY%%MM%%DD%

REM Create log file.
echo Today is %DateNow% > %DateNow%.log