You can specify parameter values at several points in a CLI session:
CLI startup – You can specify parameters at the command line when you start the CLI. Parameters that are specified at startup are global to the session. Global parameters retain their values unless overridden with the set command or removed from the current session with the unset command.
CLI commands – You can specify parameters for individual CLI commands executed during a session. A value specified as part of a command temporarily overrides the value of a global parameter for the duration of that command.
Input file – Parameter definitions can be stored in an external file and can be invoked at any time in a CLI session. Parameter values that are defined in an external file are overridden by global parameters and by individual command parameters.