How do I update Simulink model-wide parameters from the command line?

As of Simulink 5.1 (R13SP1), you can use the USET_PARAM and UGET_PARAM to change model-wide parameters. For example, to change the "RTW system target file" try:

uset_param(gcs,  'SystemTargetFile', new_target_file)

In Simulink 6.0 (R14), however, the utility functions UGET_PARAM and USET_PARAM are being obsoleted. For Simulink 6.0 (R14) and later releases, you should use GET_PARAM and SET_PARAM instead as explained in the following documentation:

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