rmdir Delete an empty folder , Cannot delete when the target folder is not empty

mv Move files or directories

mv source target

mv -i *** *** If the target file exists, ask whether to override

mv -f *** *** If the target file exists, it will be covered

mv -b *** *** If the target file exists, the target file will be backed up , And then move

mv -u *** *** If source If it's new, cover it

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