My classmate stole one of my files. What can I do?
I attend high school in Slovenia. We are currently making an HTML project on a group server and my classmate has stolen one of my CSS files. He just copied it to his directory, but I cannot delete the file because I don't have the owner's permissions. What can I do? Is there any other way to circumvent the owner's rights or do I have to tell our teacher?
I know that it sounds weird, but I'm really feeling hopeless.