Unix Surplus IT Support Intern interview questions

The person who called me for the interview was very nice and professional mannered. I arrived at the location on time and was brought to a different person by the person who had phoned me. The interviewer, did not seem very welcoming. In fact, rather intimidating, straight to the point. I felt very dumbfounded by his remarks as this interview position was for pretty much an entry level IT position. Had very high expectation of knowledge base for UNIX/LINUX and WILL talk down on you if you lack some knowledge or show signs of weakness.