Provides online information about system commands (that is, non-network commands). If used without parameters, help lists and briefly describes every system command.
For examples of how to use this command, see Examples.
help [<Command>] [<Command>] /?
Specifies the name of the command that you want information about.
To view information about the robocopy command, type either of the following:
help robocopy robocopy /?