系统监控 · Linux命令

1. 查看系统运行时间、用户数、负载 uptime ~~~ [root@cp31 ~]# uptime 18:50:33 up 98 days, 8:42, 1 user, load average: 0.25, 0.25, 0.25 ~~~ 2. 查看当前用户的计划任务服务 crontab -l ~~~ [root@cp31 ~]# crontab -l no crontab for root ~~~ 3. 查看系统所有用户 ~~~ [root@cp31 ~]# cut -d: -f1 /etc/passwd root bin daemon adm lp sync shutdown halt mail operator games ftp nobody avahi-autoipd systemd-bus-proxy systemd-network dbus polkitd tss postfix sshd chrony nginx by678 by678ftp yc2018ftp zabbix bbli8ftp openvpn nm-openvpn tcpdump ~~~ 4. 查看系统所有组 ~~~ [root@cp31 ~]# cut -d: -f1 /etc/group root bin daemon sys adm tty disk lp mem kmem wheel cdrom mail man dialout floppy games tape video ftp lock audio nobody users utmp utempter ssh_keys avahi-autoipd input systemd-journal systemd-bus-proxy systemd-network dbus polkitd dip tss postdrop postfix sshd cgred docker chrony nginx zabbix openvpn nm-openvpn tcpdump ~~~ 5. 查看活动用户 w ~~~ [root@cp31 ~]# w 19:00:34 up 98 days, 8:52, 1 user, load average: 0.10, 0.42, 0.38 USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT root pts/17 117.30.199.189 18:21 2.00s 0.09s 0.03s w ~~~ 6. 查看用户登录日志 last ~~~ [root@cp31 ~]# last root pts/17 117.30.199.189 Thu Jun 7 18:21 still logged in root pts/22 117.30.199.189 Thu Jun 7 12:28 - 13:12 (00:44) root pts/21 36.248.245.224 Thu Jun 7 11:48 - 17:39 (05:51) root pts/20 36.248.245.224 Thu Jun 7 10:10 - 13:26 (03:16) root pts/17 36.248.245.224 Thu Jun 7 09:23 - 13:26 (04:03) root pts/22 36.248.245.224 Wed Jun 6 18:07 - 18:08 (00:00) root pts/21 36.248.245.224 Wed Jun 6 17:47 - 20:00 (02:13) root pts/17 36.251.248.186 Wed Jun 6 15:54 - 21:56 (06:02) root pts/20 36.248.245.224 Wed Jun 6 14:10 - 18:08 (03:58) root pts/21 36.248.245.224 Wed Jun 6 11:20 - 14:46 (03:26) root pts/20 36.248.245.224 Wed Jun 6 11:10 - 13:23 (02:12) root pts/17 36.248.245.224 Wed Jun 6 09:31 - 15:20 (05:48) root pts/17 222.79.173.206 Tue Jun 5 16:36 - 16:38 (00:02) root pts/17 36.248.245.224 Mon Jun 4 17:00 - 17:15 (00:15) root pts/22 36.251.248.186 Mon Jun 4 11:32 - 00:05 (12:33) root pts/21 36.248.245.224 Mon Jun 4 10:59 - 13:36 (02:37) root pts/20 36.251.248.186 Mon Jun 4 10:56 - 00:06 (13:10) root pts/17 36.248.245.224 Mon Jun 4 10:52 - 13:36 (02:44) root pts/17 36.248.245.224 Mon May 28 09:47 - 14:14 (04:26) root pts/17 36.248.245.241 Thu May 17 11:05 - 13:18 (02:13) root pts/17 110.87.75.67 Tue May 15 21:26 - 23:38 (02:11) root pts/17 222.79.173.206 Tue May 8 09:25 - 09:44 (00:18) root pts/21 117.28.119.250 Wed May 2 17:06 - 19:20 (02:14) root pts/20 36.248.245.236 Wed May 2 15:32 - 18:36 (03:03) root pts/20 117.28.119.78 Sun Apr 1 20:45 - 00:30 (03:44) root pts/20 117.30.199.179 Sat Mar 31 20:56 - 02:34 (05:37) root pts/20 36.248.245.120 Sun Mar 25 20:02 - 09:59 (13:57) root pts/22 36.248.245.120 Wed Mar 21 12:50 - 16:16 (03:26) root pts/21 36.248.245.120 Wed Mar 21 10:43 - 20:21 (09:37) root pts/20 36.248.245.120 Wed Mar 21 10:43 - 13:38 (02:55) root pts/21 120.41.166.179 Mon Mar 19 20:41 - 22:53 (02:12) root pts/20 106.122.243.42 Mon Mar 19 20:04 - 22:53 (02:48) root pts/21 36.248.245.120 Mon Mar 19 16:21 - 18:38 (02:17) root pts/20 36.248.245.120 Mon Mar 19 16:05 - 18:38 (02:33) root pts/18 36.248.245.120 Thu Mar 8 17:28 - 18:14 (00:46) root pts/18 96.9.88.3 Thu Mar 8 10:44 - 15:14 (04:30) root pts/1 103.211.244.75 Wed Mar 7 21:02 - 23:21 (02:19) root pts/23 36.248.245.120 Wed Mar 7 15:04 - 15:06 (00:02) root pts/25 96.9.88.3 Wed Mar 7 10:54 - 14:35 (03:41) root pts/23 36.248.245.120 Wed Mar 7 10:48 - 13:06 (02:18) root pts/23 36.248.245.120 Wed Mar 7 10:35 - 10:48 (00:12) root pts/25 96.9.88.3 Tue Mar 6 15:45 - 22:39 (06:54) root pts/23 96.9.88.3 Tue Mar 6 12:40 - 17:03 (04:23) root pts/23 96.9.88.3 Tue Mar 6 11:32 - 12:40 (01:08) root pts/25 36.248.245.120 Mon Mar 5 11:03 - 18:14 (07:11) root pts/23 36.248.245.120 Mon Mar 5 09:25 - 11:03 (01:38) root pts/23 96.9.88.3 Sun Mar 4 16:53 - 21:31 (04:37) root pts/7 103.211.244.75 Fri Mar 2 18:20 - 22:07 (03:47) root pts/7 103.211.244.75 Fri Mar 2 15:41 - 16:03 (00:21) root pts/9 36.248.245.106 Fri Mar 2 11:48 - 13:59 (02:11) root pts/9 36.248.245.106 Fri Mar 2 11:44 - 11:46 (00:01) root pts/8 103.211.244.75 Fri Mar 2 11:41 - 15:53 (04:12) root pts/7 103.211.244.75 Fri Mar 2 10:33 - 11:03 (00:30) root pts/8 192.168.30.32 Thu Mar 1 16:38 - 19:21 (02:43) root pts/7 96.9.88.3 Thu Mar 1 15:59 - 19:06 (03:07) root pts/6 103.211.244.75 Thu Mar 1 11:13 - 12:34 (01:21) reboot system boot 3.10.0-693.17.1. Thu Mar 1 18:07 - 19:03 (98+00:55) root pts/10 96.9.88.3 Wed Feb 28 17:22 - 21:24 (04:02) root pts/8 103.211.244.75 Wed Feb 28 15:04 - 17:54 (02:50) root pts/7 103.211.244.75 Wed Feb 28 15:04 - 17:54 (02:50) root pts/2 103.211.244.75 Wed Feb 28 14:10 - 17:54 (03:43) root pts/2 103.211.244.75 Wed Feb 28 10:47 - 13:58 (03:11) root pts/7 103.211.244.75 Tue Feb 27 20:19 - 23:55 (03:36) root pts/2 96.9.88.3 Tue Feb 27 18:12 - 21:28 (03:15) root pts/9 96.9.88.3 Tue Feb 27 08:47 - 18:35 (09:47) root pts/7 103.211.244.82 Mon Feb 26 16:19 - 22:15 (05:55) root pts/7 103.211.244.75 Mon Feb 26 09:57 - 15:31 (05:33) root pts/14 103.211.244.75 Sun Feb 25 10:58 - 18:02 (07:04) root pts/13 103.211.244.75 Sun Feb 25 09:26 - 18:03 (08:36) root pts/13 103.211.244.82 Fri Feb 23 14:11 - 22:21 (08:09) root pts/13 36.248.245.106 Thu Feb 22 02:23 - 02:54 (00:31) root pts/12 112.5.248.186 Tue Feb 13 21:32 - 00:03 (02:31) root pts/0 36.248.245.106 Tue Feb 13 16:43 - 19:13 (02:29) reboot system boot 3.10.0-693.17.1. Wed Feb 14 00:43 - 22:45 (14+22:02) root pts/1 36.248.245.106 Tue Feb 13 16:40 - down (00:01) root pts/1 192.168.30.30 Tue Feb 13 13:58 - 16:16 (02:18) root pts/9 36.248.245.106 Tue Feb 13 13:28 - 15:40 (02:12) root pts/4 36.248.245.106 Tue Feb 13 11:32 - 13:46 (02:13) root pts/12 192.168.30.30 Tue Feb 13 02:12 - 02:12 (00:00) root pts/5 36.248.245.106 Tue Feb 13 00:22 - 02:53 (02:31) root pts/2 192.168.30.30 Tue Feb 13 00:15 - 01:41 (01:26) root pts/5 192.168.30.30 Mon Feb 12 23:51 - 23:51 (00:00) root pts/0 36.248.245.106 Mon Feb 12 23:40 - 02:02 (02:21) root pts/0 192.168.30.30 Mon Feb 12 23:38 - 23:38 (00:00) root pts/0 192.168.30.30 Mon Feb 12 23:36 - 23:36 (00:00) root pts/0 192.168.30.30 Mon Feb 12 23:34 - 23:35 (00:00) root pts/0 192.168.30.30 Mon Feb 12 23:34 - 23:34 (00:00) root pts/0 103.196.126.30 Mon Feb 12 23:31 - 23:31 (00:00) root pts/0 192.168.30.30 Mon Feb 12 23:27 - 23:27 (00:00) root pts/5 192.168.30.30 Mon Feb 12 23:21 - 23:21 (00:00) root pts/4 36.248.245.106 Mon Feb 12 23:06 - 08:51 (09:44) root pts/3 36.248.245.106 Mon Feb 12 22:26 - 00:44 (02:17) root pts/3 192.168.30.30 Mon Feb 12 22:04 - 22:04 (00:00) root pts/3 192.168.30.32 Mon Feb 12 22:03 - 22:03 (00:00) root pts/2 36.248.245.106 Mon Feb 12 22:01 - 00:15 (02:13) root pts/1 106.122.211.144 Mon Feb 12 21:14 - 01:15 (04:01) root pts/0 36.248.245.106 Mon Feb 12 21:05 - 23:23 (02:17) reboot system boot 3.10.0-693.17.1. Tue Feb 13 05:01 - 16:42 (11:40) root pts/0 36.248.245.106 Mon Feb 12 20:40 - down (00:20) root pts/0 36.248.245.106 Sat Feb 10 14:57 - 17:31 (02:34) reboot system boot 3.10.0-693.17.1. Sat Feb 10 09:53 - 21:00 (2+11:07) root pts/0 36.248.245.106 Sat Feb 10 19:44 - crash (-9:-51) reboot system boot 3.10.0-693.17.1. Sat Feb 10 13:21 - 21:00 (2+07:39) root pts/1 120.41.165.161 Sat Feb 10 18:13 - down (00:06) root pts/0 120.41.165.161 Sat Feb 10 18:06 - down (00:14) reboot system boot 3.10.0-693.17.1. Sat Feb 10 13:05 - 18:20 (05:15) root pts/2 120.41.165.161 Sat Feb 10 17:59 - down (00:04) root pts/1 120.41.165.161 Sat Feb 10 17:43 - down (00:20) root pts/0 120.41.165.161 Sat Feb 10 17:38 - down (00:25) reboot system boot 3.10.0-693.17.1. Sat Feb 10 12:28 - 18:03 (05:35) root pts/2 120.41.165.161 Sat Feb 10 17:27 - crash (-4:-58) root pts/1 120.41.165.161 Sat Feb 10 16:50 - crash (-4:-22) root pts/0 120.41.165.161 Sat Feb 10 16:16 - crash (-3:-47) root tty1 Sat Feb 10 02:27 - 02:31 (00:04) reboot system boot 3.10.0-327.el7.x Fri Feb 9 18:20 - 18:03 (23:43) root pts/0 36.248.245.106 Fri Feb 9 22:51 - 23:07 (00:16) root pts/0 n1164831028.netv Fri Feb 9 22:40 - 22:40 (00:00) reboot system boot 3.10.0-327.el7.x Fri Feb 9 16:51 - 18:03 (1+01:12) root pts/0 n1164831028.netv Fri Feb 9 20:44 - 21:02 (00:18) root pts/0 36.248.245.106 Fri Feb 9 15:34 - 18:16 (02:42) root pts/2 36.248.245.106 Fri Feb 9 00:45 - 02:56 (02:11) root pts/1 36.248.245.106 Fri Feb 9 00:30 - 00:45 (00:14) root pts/0 36.248.245.106 Fri Feb 9 00:25 - 02:38 (02:12) root tty1 Thu Feb 8 23:18 - 23:21 (00:03) reboot system boot 3.10.0-327.el7.x Thu Feb 8 18:16 - 21:50 (1+03:33) wtmp begins Thu Feb 8 18:16:50 2018 ~~~