motoyen wrote:
"How do I do that in terminal? Do I just type "uptime"?"
Yup.
[email protected]:~$ uptime
4:55PM up 12:02, 2 users, load averages: 0.70, 0.64, 0.51
You'll see the current time, the length of time your system has been running, and the load averages of your system (basically how busy your system has been over the last minute, five minutes, and fifteen minutes).