Your shell program should be called incidence. The shell program will be given a single argument. If the argument is a year, the program should report the country with the highest incidence and the...

Your shell program should be called incidence. The shell program will be given a single argument. If the argument is a year, the program should report the country with the highest incidence and the corresponding incidence value for that year. On the other hand, if the argument is a country, the program should report the year with the highest incidence and the corresponding incidence value.