Attrib displays or changes file attributes. Attrib [+ R |-R] [+ A |-A] [+ S |-S] [+ H |-H] [[drive:] [path] filename] [/s [/d] + set attributes. -Clear attributes. R read-only file attributes. A. archive file attributes. S system file attributes. H. Hide the file attributes. [Drive:] [path] [filename] specifies the file attribute to be processed. /S processes matching files in the current folder and Its subfolders. /D also processes folders. Rd deletes a directory. Rmdir [/S] [/q] [drive:] pathrd [/S] [/q] [drive:] path/S except the directory, all subdirectories and files under the specified directory will also be deleted. Used to delete a directory tree. /Q quiet mode. When deleting a directory tree with/s, you do not need to confirm that MD creates a directory. Mkdir [drive:] pathmd [drive:] path if the command extension is enabled, mkdir will change as follows: if necessary, mkdir will create a level directory in the path. For example, if \ A does not exist, mkdir \ A \ B \ c \ D is the same as mkdir \ A chdir \ a mkdir B chdir B mkdir C chdir C mkdir D. If the extension is disabled, type mkdir \ A \ B \ c \ D. Del deletes one or more files. Del [/P] [/F] [/S] [/q] [/A [[:] attributes] nameserase [/P] [/F] [/S] [/q] [/A [[:] attributes] names specifies one or more files or directories. Wildcard characters can be used to delete multiple objects. If a directory is specified, all files in the directory will be deleted. /P prompts confirmation before deleting each file. /F force Delete read-only files. /S deletes the specified file from all subdirectories. /Q quiet mode. Confirmation is not required when deleting a global wildcard. /A select the file to be deleted based on the attribute. Attributes R read-only file S System File h hide file a archive file-Prefix indicating "no" if the command extension is enabled, Del and erase will change as follows: the display syntax of the/s switch is reversed, that is, only deleted files are displayed, but not files that cannot be found. COPY Copies one or more files to another location. Copy [/d] [/V] [/n] [/Y |/-y] [/Z] [/A |/B] source [/A |/B] [+ source [/A |/B] [+...] [destination [/A |/B] source specifies the file to be copied. /A indicates an ASCII text file. /B indicates a binary file. /D allows decryption of the target file to be created. Destination specifies a directory and/or file name for the new file. /V verify that the new file is written correctly. /N when copying a file with a non-8dot3 name, try to use a short file name. /Y does not use the prompt to confirm whether to rewrite the existing target file. /-Y indicates whether to rewrite the existing target file. /Z: Use the restart mode to copy connected files. The command line switch/y can be preset in the copycmd environment variable. This may be replaced by/-y on the command line. Unless the Copy command is executed in a batch file script, the default value should be a prompt during rewriting. To attach a file, specify a file for the target and specify several files for the source (using wildcards or file1 + file2 + file3 format ).