This is the text description of the syntax diagram for the RMAN cmdline construct.
RMAN [ { {APPEND | CHECKSYNTAX | AUXILIARY [=] connectStringSpec | CATALOG [=] connectStringSpec | {CMDFILE [=] | @ | LOG [=]} ['] filename ['] | MSGNO | NOCATALOG | SEND [=] ' command ' | {PIPE [=] ['] pipe_name | SCRIPT [=] ['] script_name} ['] | TARGET [=] connectStringSpec | TIMEOUT [=] integer}}...]
Elements in the diagram are described in the discussion that follows the diagram.