有个朋友想查看服务器一天的网卡流量,但是没有安装cacti。所以我推荐他使用ifconfig查看下网卡流量,然后看下系统运行时间,除出来参考一下。他居然问我系统时间怎么查看。好吧,那我就写篇文章记录下怎么查看系统时间

方法一:

who命令, -r runlevel     -b boot

[root@rsync ~]# who -r

        运行级别 3 2016-11-03 10:32

[root@rsync ~]# who -b

         系统引导 2016-11-03 10:32

方法二:

uptime命令

[root@rsync ~]# uptime

 14:39:52 up 26 days,  4:06,  8 users,  load average: 0.08, 0.25, 0.20

方法三:

top命令

[root@rsync ~]# top

top - 14:40:37 up 26 days,  4:06,  7 users,  load average: 0.08, 0.23, 0.19

Tasks: 438 total,   1 running, 437 sleeping,   0 stopped,   0 zombie

Cpu(s):  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

Mem:  20452936k total, 18898012k used,  1554924k free,   164740k buffers

Swap: 32767996k total,        0k used, 32767996k free, 18098932k cached

方法四:

w命令

[root@rsync ~]# w

 14:45:32 up 26 days,  4:11,  7 users,  load average: 0.01, 0.10, 0.14

USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU WHAT

root     pts/0    192.168.1.194    08:35    5:13m 12.15s  0.00s /bin/bash /usr/bin/ip.ssh 三好

root     pts/2    192.168.1.194    08:37   33:09   1.07s  0.00s /bin/bash /usr/bin/ip.ssh 青岛

root     pts/3    192.168.1.192    14:00    0.00s  0.06s  0.00s w

root     pts/4    192.168.1.194    14:07   31:20   0.14s  0.00s /bin/bash /usr/bin/ip.ssh 青岛会

root     pts/6    192.168.1.194    08:56   38:13   2.37s  0.00s /bin/bash /usr/bin/ip.ssh 青岛山

root     pts/7    192.168.1.194    09:07    5:23   0.10s  0.00s /bin/bash /usr/bin/ip.ssh 下沙

root     pts/8    192.168.1.194    14:19    5:16   0.02s  0.02s -bash

方法五:

last reboot命令

[root@rsync ~]# last reboot

reboot   system boot  2.6.32-504.el6.x Thu Nov  3 10:32 - 14:51 (26+04:19)  

wtmp begins Sat Oct 29 13:27:00 2016