使用命令 lsb_release -a
1 [root@67 ~]# lsb_release -a
2 LSB Version: :core-4.1-amd64:core-4.1-noarch
3 Distributor ID: CentOS
4 Description: CentOS Linux release 7.6.1810 (Core)
5 Release: 7.6.1810
6 Codename: Core
更多方法，参照：
使用命令 lsb_release -a
1 [root@67 ~]# lsb_release -a
2 LSB Version: :core-4.1-amd64:core-4.1-noarch
3 Distributor ID: CentOS
4 Description: CentOS Linux release 7.6.1810 (Core)
5 Release: 7.6.1810
6 Codename: Core
更多方法，参照：