Question

If a CentOS 7 administrator needs to review the amount of time since the last system reboot and how many users are logged on, what command can they use?

Answer 1

uptime

Step-by-step explanation:

uptime command gives information about:

• current time
• the amount of time since the last system reboot
• How many users are currently logged on
• The system load averages for the past 1, 5, and 15 minute periods

A sample output is like this:

19:03:17 up 9:40, 1 user, load average: 0,20, 0,28, 0,26

which means:

• 19:03:17 is the current time

• the system is up since 9 hours 40 min.

• 1 user is logged on
• The system load averages for the past 1, 5, and 15 minute are 0,20, 0,28, 0,26