Objective: write a program that can accept command line parameters and produce output to the terminal.

• Write a C program myprog that can accept an arbitrary number of command line arguments, e.g.

myprog Hello, world!

• You are not allowed to use any standard string manipulation functions from <string.h>.
• myprog must print each argument starting with the first character on the first line, two characters on the second line, etc. myprog must exclude all characters other than a through z and A through Z. For the parameters specified above, myprog must produce the following output:

H
He
Hel
Hell
Hello
W
Wo
Wor
Worl
World

• Use three test cases to verify the correctness of your code as follows:

  1. myprog
     

  2. myprog Have a nice day!
     

  3. myprog paraskevidekatriaphobia = Friday 13.
     

• A single C source code file with your work.
• A screenshot (in PNG or JPG format) showing your program executing each of the three test cases on a Linux terminal.