前言

     CentOS7开始不再使用ifconfig，并不预装，而是采用ip addr指令查询网卡名称和IP地址

[root@yzz-test ~]# ifconfig

-bash: ifconfig: 未找到命令

[root@yzz-test ~]# yum search ifconfig

已加载插件：fastestmirror

Loading mirror speeds from cached hostfile

 * base:

 * epel:

 * extras:

 * updates:

======================================================== N/S matched: ifconfig ========================================================

python36-ifcfg.noarch : Python cross-platform network interface discovery (ifconfig/ipconfig/ip)

结果：安装之后，没有该指令，尝试采用search all

[root@yzz-test ~]# yum search all  ifconfig

已加载插件：fastestmirror

Loading mirror speeds from cached hostfile

 * base:

 * epel:

 * extras:

 * updates:

=========================================================== 匹配：ifconfig ============================================================

python36-ifcfg.noarch : Python cross-platform network interface discovery (ifconfig/ipconfig/ip)

moreutils.x86_64 : Additional unix utilities

net-tools.x86_64 : Basic networking tools

python2-psutil.x86_64 : A process and system utilities module for Python

python34-psutil.x86_64 : A process and system utilities module for Python

python36-psutil.x86_64 : A process and system utilities module for Python

[root@yzz-test ~]# yum install net-tools