Using Online GDB

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 $.$

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:

myprog

myprog Have a nice day!

myprog paraskevidekatriaphobia $=$ Friday $13.$