I am very very new to Ubuntu. I wish to know how to see user logs in Ubuntu. I realized that our son has been using his computer on days he's not supposed to. Apparently, he configured the computer that user logs are deleted so I don't see user logs except on the day the computer is turned on. Is there a way to see computer activity and which dates and time? I will really appreciate your responses.
SnapOverflow
Try this:
Inside of the window that opened click "computer" with the hard drive icon to the left of it. Open the folder named var, than open log, than double click auth.log, you will see a lot of information that you can ignore but focus on the date and times showing on the left hand side as you scroll down.