1. Write a C program that counts the number of non white-space characters in an input text file. Program takes as command argument(s) the name of the input file (and the output file with option -f). Based on the option flags, it displays the output on the standard output, or writes the output to an output file. (25 points)

The command format is as follows:

command -f inputfile outputfile or,

command -s inputfile

-f indicates writing to an output file;

-s indicates displaying the output on the screen.

Also notice the errors caused by incomplete arguments.