centos 查看系統版本

OS:CentOS release 6.7 (Final)

第一種方法：

[root@sky9896sky]# lsb_release -a

bash:lsb_release: command not found

[root@sky9896sky]#yum install lsb –y

[root@sky9896sky]# lsb_release -a

LSBVersion: :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch

DistributorID: CentOS

Description: CentOS release 6.7 (Final)

Release: 6.7

Codename: Final

第二種方法:

[root@sky9896 sky]# cat /etc/redhat-release

CentOSrelease 6.7 (Final)

第三種方法：

[root@sky9896 sky]# rpm -qcentos-release

centos-release-6-7.el6.centos.12.3.x86_64

第四種方法：

[root@sky9896 sky]# cat/etc/issue