The use log line is a command in the Linux operating system that allows users to view the system logs. These logs contain information about events that have occurred on the system, such as error messages, security alerts, and system changes. The use log line command can be used to troubleshoot problems with the system, monitor security events, and track changes to the system.
To use the use log line command, simply type the following command into a terminal window:
```
use log line
```
This will display the last few lines of the system log. You can also use the -f option to follow the log in real time, as new events are added to it.
```
use log line -f
```
The use log line command can be used with a variety of options to filter the log messages that are displayed. For example, you can use the -p option to specify the priority of the messages that you want to see, or the -t option to specify the time range of the messages that you want to see.
For more information about the use log line command, type the following command into a terminal window:
```
man use log line
```