What is the uptime command?

The uptime command is a utility in Unix-like operating systems that shows how long the system has been running since the last boot. It provides information about the system's uptime, the number of users currently logged in, and the system load averages for the past 1, 5, and 15 minutes.

When you run the command:

uptime

You might see output like this:

 14:32:01 up 5 days, 3 hours, 12 minutes,  2 users,  load average: 0.05, 0.10, 0.15

In this output:

• 14:32:01 is the current time.
• up 5 days, 3 hours, 12 minutes indicates how long the system has been running.
• 2 users shows the number of users currently logged in.
• load average: 0.05, 0.10, 0.15 represents the system load averages over the last 1, 5, and 15 minutes, respectively.

This command is useful for monitoring system performance and understanding how long the system has been operational.