how to do copy command
If you omit /s, xcopy works within a single directory. /e: Copies all subdirectories, even if they are empty. Use /e with the /s and /t command-line options. /t: Copies the subdirectory structure (that is, the tree) only, not files. To copy empty directories, you must include the /e command-line option. /k: Copies files and retains the read-only attribute on destination files if present on the source files. By default, xcopy removes the read-only attribute. /r: Copies read-only files. /h: Copies files with hidden and system file attributes.