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  • DeleteDirectory[" dir "] deletes the specified directory.
  • DeleteDirectory[" dir ", DeleteContents -> True] deletes dir and all files and directories that it contains.
  • DeleteDirectory[" dir "] deletes the directory dir only if it contains no files.
  • DeleteDirectory returns Null if it succeeds in deleting a directory, and $Failed if it fails.
  • See the Mathematica book: Section 2.11.6.
  • See also: CreateDirectory, DeleteFile.