(1) /etc/issue查看，是系统安装时默认的发行版本信息，通常安装好系统后文件内容不会发生变化 [root@test~]# cat  /etc/issue CentOS release 6.8 (Final) Kernel \r on an \m

[root@test~]# cat /etc/issue Oracle Linux Server release 6.8 Kernel \r on an \m

[root@test01 scripts]# cat  /etc/issue Red Hat Enterprise Linux Server release 6.8 (Santiago) Kernel \r on an \m

[root@test~]# cat /etc/system-release Oracle Linux Server release 6.8

(2)lsb_release 命令查看，FSG（Free Standards Group）组织开发的LSB (Linux Standard Base)标准的一个命令，用来查看linux兼容性的发行版信息 [root@test scripts]# lsb_release -v LSB Version:    :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 [root@test scripts]# lsb_release -a LSB Version:    :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 Distributor ID:    RedHatEnterpriseServer Description:    Red Hat Enterprise Linux Server release 6.8 (Santiago) Release:    6.8 Codename:    Santiago

/etc/redhat-release可以看到具体的版本号 [root@test scripts]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 6.8 (Santiago)