The System Resource File
The System Resource file ($HOME/.nmsrc) houses the environment variables that enable the Oracle Utilities Network Management System to operate correctly and consistently. They define the connections information for the database and Isis, as well as environment specific configuration settings, such as viewer symbology.
You will need to modify the System Resource file in part for application to specific systems. One suggestion is to use environment variable dependencies. By doing this you can simplify the process of changing values; by changing one variable that is a root dependency, the change will cascade through a number of others, limiting your required changes and maintaining consistency throughout the file.