如何查看Linux系统使用的版本信息呢？ 下面这篇文章收集、整理了一些常见的查看Linux系统版本的方法。由于手头只有Oracle Linux、Centos Linux、Redhat Linux三个版本Linux，所以像Debian、Ubuntu之类的Linux系统,下面方法在这些版本都没测试过。
1：more /etc/issue 命令查看1.1 Oracle Linux
[root@DB-Server ~]# more /etc/issueOracle Linux Server release 5.7Kernel \r on an \m
1.2 Centos Linux
[root@Centos2 ~]# more /etc/issueCentOS release 6.4 (Final)Kernel \r on an \m
1.3 RedHat Linux
[root@getlnx05 ~]# more /etc/issueRed Hat Enterprise Linux Server release 5.7 (Tikanga)Kernel \r on an \m
2: lsb_release -a 命令查看 2.1 Oracle Linux
[root@DB-Server ~]# lsb_release -a
LSB Version: :core-4.0-amd64:core-4.0-ia32:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-ia32:printing-4.0-noarch
Distributor ID: EnterpriseEnterpriseServer
Description: Enterprise Linux Enterprise Linux Server release 5.7 (Carthage)
Release: 5.7
Codename: Carthage
2.2 Centos Linux
[root@Centos2 ~]# 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: CentOS
Description: CentOS release 6.4 (Final)
Release: 6.4
Codename: Final
2.3 RedHat Linux
[root@getlnx05 ~]# lsb_release -a
LSB Version: :core-4.0-amd64:core-4.0-ia32:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-ia32:printing-4.0-noarch
Distributor ID: RedHatEnterpriseServer
Description: Red Hat Enterprise Linux Server release 5.7 (Tikanga)
Release: 5.7
Codename: Tikanga
3：cat /etc/redhat-release 命令查看这个命令应该只有部分Linux可以查看，不是所有版本Linux都可以使用该命令
3.1 Oracle Linux
[root@DB-Server ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.7 (Tikanga)
[root@DB-Server etc]# cat /etc/*release
Enterprise Linux Enterprise Linux Server release 5.7 (Carthage)
Oracle Linux Server release 5.7
Red Hat Enterprise Linux Server release 5.7 (Tikanga)
[root@DB-Server etc]# ls /etc/*lease
/etc/enterprise-release /etc/oracle-release /etc/redhat-release
[root@DB-Server etc]#
3.2 Centos Linux
[root@Centos2 ~]# cat /etc/redhat-release
CentOS release 6.4 (Final)
[root@Centos2 ~]# cat /etc/*release
CentOS release 6.4 (Final)
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
CentOS release 6.4 (Final)
CentOS release 6.4 (Final)
[root@Centos2 ~]# ls /etc/*release
/etc/centos-release /etc/lsb-release /etc/redhat-release /etc/system-release
[root@Centos2 ~]#
3.3 RedHat Linux
[root@getlnx05 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.7 (Tikanga)
[root@getlnx05 ~]# cat /etc/*release
Red Hat Enterprise Linux Server release 5.7 (Tikanga)
[root@getlnx05 ~]# ls /etc/*release
/etc/redhat-release
[root@getlnx05 ~]#
4 rpm -q redhat-release命令查看，只适用于Redhat Linux
[root@getlnx05 ~]# rpm -q redhat-release
redhat-release-5Server-5.7.0.3
