What is that for?

int main(int argc, char* argv[])

in the tuts it says:

The interger, argc is the ARGument Count (hence argc). It is the number of arguments passed into the program from the command line, including the path to and name of the program.

The array of character pointers is the listing of all the arguments. argv[0] is entire path to the program including its name. After that, every element number less than argc are command line arguments. You can use each argv element just like a string, or use argv as a two dimensional array.

I dont understand any of this! Please help me Thanx