Task 02 is hard to understand for C newbies!

[ostue]

I'm very new to C programming. I understand C code when I see it, but it's hard for me writing my own code in C. I tried task 2 and had the problem that I didn't understand that the "cmd_handler" is a dummy name for a function. So I tried to implement the "cmd_handler". I also did not understand that you have to programm the code that will be executed when the function is called. To avoid this mistake you could explain the function better by inserting curly braces at the end of "int cmd_handler(int argc, char **argv);". If these aspects would be explained better, it would be a nice tutorial!
~ ostue