centos下很多安装包名和使用时的命令名不一致。比如lsb_release。

Yes

$ yum install redhat-lsb -y

NO

$ yum install lsb_release  -y

$ lsb_release -a
LSB Version:    :core-4.1-amd64:core-4.1-noarch:cxx-4.1-amd64:cxx-4.1-noarch:desktop-4.1-amd64:desktop-4.1-noarch:languages-4.1-amd64:languages-4.1-noarch:printing-4.1-amd64:printing-4.1-noarch
Distributor ID: CentOS
Description:    CentOS Linux release 7.3.1611 (Core)
Release:    7.3.1611
Codename:   Core

扩展阅读：

lsb_release: command not found 解决
http://blog.csdn.net/gg296231363/article/details/6906025