Windows Batch Script: dirname equivalent, get the parent directory of a file

Note: the code below can handle the path contains spaces:

• Option 1:

  SET filename="C:\Files\A Dir\file1.txt"
  FOR %%F IN (%filename%) DO SET "dirname=%%~dpF"
  ECHO %dirname%
  

• Option 2:

  SET "filename=C:\Files\A Dir\file1.txt"
  FOR %%F IN ("%filename%") DO SET "dirname=%%~dpF"
  ECHO %dirname%