What is a Subcommand Processor?

If your command processor must perform a large number of complex functions, you can divide this work into individual operations. Each operation can be defined and performed by a subcommand processor. The user requests one of the operations by first entering the name of the command, and then entering a subcommand to indicate which individual operation should be performed. For example, the TSO/E EDIT command has subcommands. After entering the EDIT command, the user can then enter the subcommands for EDIT.