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

Question

If I have this:

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

In the body, you can sometimes find programs using argv[1].

When do w

Answer 1

as argv[0] is filepath of the program itself. Extra command line parameters are in further indexes, argv[1],argv[2].. You can read more here : http://www.site.uottawa.ca/~lucia/courses/2131-05/labs/Lab3/CommandLineArguments.html