Command line argument 1. main() with command line arguments. ex1.c: int main(int *x, char *y[]){ ............. } The system will pass x: command line arguments의 개수 (아래 예제에서 3개가 아니라 4개임에 유의) y: command line argument For example, $ ./ex1 x1 x2 x3 will pass 4 command line arguments: ./ex1, x1, x2, x3. Therefore, the system will pass x
