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This article introduces the relevant knowledge of "how to use the uptime command". Many people will encounter such a dilemma in the operation of actual cases, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

The uptime command prints how long the system has been running and the average load of the system. The uptime command can display information in the following order: the current time, how long the system has been running, how many logged-in users are currently, and the average load of the system in the past 1 minute, 5 minutes, and 15 minutes.

Linux uptime command

By name, the uptime command tells you how long the system has been running up. This is the grammar:

Uptime [options]

The tool's man page says:

Uptime displays the following information on one line: the current time, how long the system has been running, how many users are currently logged in, and the average load of the system for the first 1, 5, and 15 minutes.

The following Q & An examples should give you a better understanding of the uptime command.

Q1. How to use the uptime command

The basic use of uptime is simple-just enter the name of the command and press enter. This is the output:

Here, the first item is the current time, up indicates that the system is running, 5:53 is the total time for the system to boot, and finally, the system load load information. If you want to learn more, here is a description of the last piece of information on the uptime man page:

The system load is the average number of processes in the runnable runnable or uninterruptible uninterruptable state. Runnable processes are either using CPU or waiting to use CPU. A process in an uninterruptible state is waiting for some Imax O access, such as waiting for disk IO. There is an average of three time intervals. The meaning of the load average varies depending on the number of CPU in the system. A load of 1 means full load for a system with only a single CPU, while for a system with 4 CPU, it means that 75% of the time is idle. Q2. How to realize time in a more humane format

If you just want to know how long the system has been running and want to display it in a more user-friendly format, you can use the-p item

Uptime-p

This is the output:

Q3. How to make uptime display the date / time when the system starts?

You can also specify the time and date on which the uptme display system starts running. The method is to use the-s command entry.

Uptime-s

This is the output:

Q4. How to get version information and help information

-V gets version information,-h gets help information.

That's all for uptime-Vuptime-h "how to use the uptime command". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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