Reading Args

argc: number of command-line arguments.
argv: array of C-strings holding those arguments.
argv[0] is the program name (the executable's name used to start the program).
argv[1] to argv[argc-1] are the actual command-line arguments.
Example: running ./myapp arg1 arg2 sets argv[0]="./myapp", argv[1]="arg1", argv[2]="arg2".

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

}

char* is a pointer to a character or to the first character in a C-string (null-terminated array of chars).

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