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Read the letters in from the input file and convert them to upper case if they are not already in uppercase. If the output_file_name is given with the -o option, the program will output the sorted letters to the given output file; otherwise, the output shall be to standard output. In addition to parsing and processing the command line arguments, your program needs to do the following: You need to
THIS PAPER HAS BEEN DONE AT ESSAYLINK.NET; CONTACT US FOR A SOLUTION Through this programming assignment, the students will learn to do the following:…