Shulou(Shulou.com)06/02 Report--

In this article, let's take a look at using linux's journalctl command to view logs. There is a certain reference value, friends in need can refer to, hope to help you.

Systemd uniformly manages startup logs for all Unit. The benefit is that you can view all the logs (kernel logs and application logs) with only one command called journalctl.

Syntax format: journalctl [parameters]

Common parameters:

Reference example

View all logs:

[root@linuxcool ~] # journalctl

View the kernel log:

[root@linuxcool] # journalctl-k

Check the log of this startup of the system:

[root@linuxcool] # journalctl-b

View httpd's log:

[root@linuxcool] # journalctl-u httpd

View the 20 logs that have occurred recently:

[root@linuxcool ~] # journalctl-n 20

Tracking log:

[root@linuxcool ~] # journalctl-f is a brief introduction to viewing logs using linux's journalctl command. Of course, you have to use the above differences in detail before you understand it. If you want to know more, welcome to follow the industry information channel!

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