unix problem

1. (20 points) On December 25, 2019, at 00:00:00 PST, how many seconds since January 1, 1970, 00:00:00 UTC, have passed? (Hint: look at the program date(1).) 2. (20 points) How do I find the login names and times of the people currently logged into the system“pc12.cs.ucdavis.edu”, and also where they logged in from? 3. (10 points) How do I delete a file named -i?

 

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