Supplying two arguments to command line option using getopt [duplicate]

Answer 1

How would getopt know where your -o options end, and where your command arguments start?

One simple workaround is to use to -o specifiers:

$ cat t.c
#include
#include

int main(int argc, char **argv)
{
    char op;
    while ((op = getopt(argc, argv, "o:")) != EOF) {
        switch (op) {
            case 'o':
                printf("Option: %s\n", optarg);
                break;
            default:
                break;
        }
    }
}
$ gcc t.c
$ ./a.out -o one -o two -o three
Option: one
Option: two
Option: three