Hi,
I don't know how to fix this:
input: prog -a-a
output:
a
prog: unknown option -- -
a
Code:while (( c = getopt (argc, argv, "ab")) != -1) { switch (c) { case 'a': printf ("a...\n"); break; case 'b': printf("b...\n"); break; case '?': default: usage(); break; } }