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• GetE(<cEnvironmentVariable>) ➜ cValue
  see/use hb_GetEnv()

• GetEnv(<cEnvironmentVariable>) ➜ cValue
  see/use hb_GetEnv()

• hb_GetEnv( <cEnvironmentVariable>, [<cDefaultValue>] ) ➜ cValue
  returns the content of the <cEnvironmentVariable> environment variable.
  If <cEnvironmentVariable> does not exist, <cDefaultValue> is returned.
  If <cEnvironmentVariable> does not exist and no <cDefaultValue> specified an empty string is returned.

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