Person who is working to a good extent in Unix on daily basis and its his primary skill , its easy all the questions to answer. I am not a Unix guy and may be thats why I could not provide all the commands properly and answered questions logically. Interviewer was pretty cool and friendly and explained what is the position all about. I found that Interesting even though I know I dint do well in that but I thought of giving a nice response and feedback on the same. Thanks emids.