Write a function named, file_commands, that takes the name of a file as a parameter. The function processes the contents the file as follows: For file lines that begin with the letter 'a', calculate & print the integer average of the numbers on the line. For file lines that begin with the letter 'u', print the upper case format for each word following the u.

Solution: the categorization of functional and non-functional requirement are as follows: some of the more typical functional requirements include: • business rules• transaction corrections, adjustments and cancellations• administrative functions• authentication• authorization levels• audit tracking• external interfaces• certification requirements• reporting requirements• historical data• legal or regulatory requirementswhile,some typical non-functional requirements are: • performance – for example response time, throughput, utilization, static volumetric• scalability• capacity• availability• reliability• recoverability• maintainability• serviceability• security• regulatory• manageability• environmental• data integrity• usability• interoperability

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