1. If you execute who on the server to view multiple terminal logins, you need to end other terminal logins. This can determine which terminal is its own by logging in to the IP address

2. If the IP address cannot be determined, you can execute ps ef | grep pts/to display the operation information of the terminal. At this time, the terminal pts/1 displays that the command executed is ps ef and grep pts/consistent with your own operation, indicating that pts/1 is your own login terminal:

3. At this time, execute pkill - kill - t pts/0 to end the connection of the terminal pts/0

4. Execute ps - ef | grep pts/* or who again to display only pts/1