剔除踢掉在线的linux用户

1、查询在线用户：

1. [root@leekwen~]#w
2. 09:18:37up22:30,4users,loadaverage:0.00,0.02,0.00
3. USERTTYFROMLOGIN@IDLEJcpuPcpuWHAT
4. rootpts/2122.224.121.19409:0313:560.01s0.00stail-f/var/lo
5. rootpts/4122.224.121.19409:056:160.01s0.01s-bash
6. rootpts/5122.224.121.19409:090.00s0.03s0.00sw
7. rootpts/3122.224.121.19409:170.00s0.01s0.01s-bash

2、查询pts/2 客户端运行的程序：

1. [root@leekwen~]#ps-ef|greppts/2
2. root89981418009:03?00:00:00sshd:root@pts/2
3. root90008998009:03pts/200:00:00-bash
4. root90729000009:04pts/200:00:00tail-f/var/log/messages
5. root97029283009:18pts/500:00:00greppts/2

3、剔除pts/2 客户端：

1. [root@leekwen~]#kill-99000
2. [root@leekwen~]#ps-ef|greppts/2
3. root89981418009:03?00:00:00sshd:root@pts/2
4. root97639283009:18pts/500:00:00greppts/2
5. [root@leekwen~]#ps-ef|greppts
6. root89981418009:03?00:00:00sshd:root@pts/2
7. root90881418009:05?00:00:00sshd:root@pts/4
8. root90909088009:05pts/400:00:00-bash
9. root92811418009:09?00:00:00sshd:root@pts/5
10. root92839281009:09pts/500:00:00-bash
11. root95691418009:17?00:00:00sshd:root@pts/3
12. root95729569009:17pts/300:00:00-bash
13. root97879283009:18pts/500:00:00ps-ef
14. root97889283009:18pts/500:00:00greppts