1、使用lsb_release -a命令查看

[root@sky9896sky]# lsb_release -abash:lsb_release: command not found[root@sky9896sky]#yum install lsb –y[root@sky9896sky]# lsb_release -aLSBVersion: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-noarchDistributorID: CentOSDescription:    CentOS release 6.7 (Final)Release:        6.7Codename:       Final

2、使用cat /etc/redhat-release命令查看

[root@sky9896 sky]# cat /etc/redhat-releaseCentOSrelease 6.7 (Final)

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