剔除在线的linux用户

查询在线用户与进程管理

最新推荐文章于 2024-01-13 11:00:00 发布

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#centos #linux #kill #bash #leekwen

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本文介绍了如何使用Linux命令查询在线用户及所运行的程序，并演示了如何通过进程管理命令来终止特定客户端的进程。

1、查询在线用户：

[root@leekwen ~]# w
 09:18:37 up 22:30,  4 users,  load average: 0.00, 0.02, 0.00
USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU WHAT
root     pts/2    122.224.121.194  09:03   13:56   0.01s  0.00s tail -f /var/lo
root     pts/4    122.224.121.194  09:05    6:16   0.01s  0.01s -bash
root     pts/5    122.224.121.194  09:09    0.00s  0.03s  0.00s w
root     pts/3    122.224.121.194  09:17    0.00s  0.01s  0.01s -bash

2、查询pts/2 客户端运行的程序：

[root@leekwen ~]# ps -ef |grep pts/2
root      8998  1418  0 09:03 ?        00:00:00 sshd: root@pts/2
root      9000  8998  0 09:03 pts/2    00:00:00 -bash
root      9072  9000  0 09:04 pts/2    00:00:00 tail -f /var/log/messages
root      9702  9283  0 09:18 pts/5    00:00:00 grep pts/2

3、剔除pts/2 客户端：

[root@leekwen ~]# kill -9 9000
[root@leekwen ~]# ps -ef |grep pts/2
root      8998  1418  0 09:03 ?        00:00:00 sshd: root@pts/2
root      9763  9283  0 09:18 pts/5    00:00:00 grep pts/2
[root@leekwen ~]# ps -ef |grep pts
root      8998  1418  0 09:03 ?        00:00:00 sshd: root@pts/2
root      9088  1418  0 09:05 ?        00:00:00 sshd: root@pts/4
root      9090  9088  0 09:05 pts/4    00:00:00 -bash
root      9281  1418  0 09:09 ?        00:00:00 sshd: root@pts/5
root      9283  9281  0 09:09 pts/5    00:00:00 -bash
root      9569  1418  0 09:17 ?        00:00:00 sshd: root@pts/3
root      9572  9569  0 09:17 pts/3    00:00:00 -bash
root      9787  9283  0 09:18 pts/5    00:00:00 ps -ef
root      9788  9283  0 09:18 pts/5    00:00:00 grep pts