[root@localhost ~]# w
20:26:02 up 3:13, 3 users, load average: 0.00, 0.00, 0.00
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
root tty1 - 17:14 3:08m 0.07s 0.07s -bash
root pts/0 192.168.18.20 20:16 2:35 0.44s 0.40s /usr/bin/python /usr/bin/yum install dhcp
root pts/1 192.168.18.20 20:25 0.00s 0.03s 0.01s w
pts/0終端的任務卡死、若要結束該任務、先獲取該終端的PID
[root@localhost ~]# ps -ef|grep pts/0
root 4313 3399 0 20:16 ? 00:00:00 sshd: root@pts/0
root 4315 4313 0 20:16 pts/0 00:00:00 -bash
root 4362 4315 0 20:23 pts/0 00:00:00 /usr/bin/python /usr/bin/yum install dhcp
root 4426 4368 0 20:29 pts/1 00:00:00 grep pts/0
kill 4362即可結束該任務
關閉某個登錄的用戶
[root@localhost ~]# echo "i will close you" > /dev/pts/0 （該用戶會收到消息）
[root@localhost ~]# fuser -k /dev/pts/0
/dev/pts/0: 4315