Kali Linux is a Debian-based Linux distribution which is operated and funded by Offensive Security. It is a meticulously crafted OS that specifically caters to the likes of network analysts & penetration testers.
Here is a brief note on character strings in C programming. All you need to know to handle strings in C language.
Here are some question and codes on Command Line Arguments and Multidimensional Arrays in C programming language. "Questions and codes which will make you think and develop your logical thinking."