今天学习的命令都是运维工作中经常要用到的,非常实用,必须要用心学习,争取把这些命令烂熟于心,具体内容如下:
一、系统状态监测命令
1、ifconfig命令
用于获取网卡配置与网络状态等信息。
[root@linuxprobe Desktop]# ifconfig eno16777728: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.134.128 netmask 255.255.255.0 broadcast 192.168.134.255 inet6 fe80::20c:29ff:feff:6b1f prefixlen 64 scopeid 0x20<link> ether 00:0c:29:ff:6b:1f txqueuelen 1000 (Ethernet) RX packets 32 bytes 3653 (3.5 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 58 bytes 7267 (7.0 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 0 (Local Loopback) RX packets 6 bytes 560 (560.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 6 bytes 560 (560.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
eno16777728 : 网卡名称
inet 192.168.134.128 : IP地址
ether 00:0c:29:ff:6b:1f : MAC地址
RX packets 32 bytes 3653 (3.5 KiB) : 接收数据包的个数以及累计流量,重启系统则流量清零
TX packets 58 bytes 7267 (7.0 KiB) :发送数据包的个数以及累计流量,重启系统则流量清零
2、uname命令
用于查看系统内核与系统版本等信息,一般会固定搭配-a参数
[root@linuxprobe ~]# uname -a Linux linuxprobe.com 3.10.0-123.el7.x86_64 #1 SMP Mon May 5 11:16:57 EDT 2014 x86_64 x86_64 x86_64 GNU/Linux