I wanted to know how can I delete my personal and private information on my boyfriend’s computer without him knowing. Every time we got into an argument he threatens to exposed me. Will it help me if I use the terminal and what should I write?
Unfortunately, we can't give you advice on this, even though the scenario you present sounds despicable on his part. From a legal standpoint, we can't assist with illegal things, even in situations where, if this is the whole story, the other person more than deserves it. Frankly, if he's blackmailing you, this is a matter for the authorities in your jurisdiction.