Change a user role from command-line in Windows

A little known one is

getmac

It shows the MAC address(es) of your network adapter(s).

The command xcopy is what you are looking for. Example:

xcopy source destination /E /C /H /R /K /O /Y

The command above will copy source to destination, files and directories (including empty ones), will not stop on error, will copy hidden and system files, will overwrite read only files, will preserve attributes and ownership/ACL information, and will suppress the prompting for overwrite existing destination files.

/E    Copies directories and subdirectories, including empty ones.
      Same as /S /E. May be used to modify /T.
/C    Continues copying even if errors occur.
/H    Copies hidden and system files also.
/R    Overwrites read-only files.
/K    Copies attributes. Normal Xcopy will reset read-only attributes.
/O    Copies file ownership and ACL information.
/Y    Suppresses prompting to confirm you want to overwrite an
      existing destination file.

For more info type xcopy /? and your command line.