SQLPlus Command-Line Syntax for Connection
sqlplus user/password@(description=(address_list=(address=.......ODS)))
will work (use quotes if in Unix else the () are interpreted by the shell)
that url-like syntax is supported by (much) later releases of sqlplus.
Or you can use the EZconnect syntax:
sqlplus user/password@//hostname/service_name
sqlplus user/password@//hostname:port/service_name