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(MaKe DIRectory) An internal DOS/Windows command that creates a new folder (directory). MKDIR and MD are two forms of the command. MKDIR is also a Unix command, but not MD (see Unix commands).

The examples below create a SALLY folder within the current ABC folder and also within the XYZ folder, which is at the same level as ABC. The backslash is used to denote the path to a folder on the same or higher level:
  C:\ABC>mkdir sally
  C:\ABC>mkdir \xyz\sally


  C:\ABC>md sally
  C:\ABC>md \xyz\sally