查看系统发行版本

#lsb_release -a
LSB Version:    :core-3.1-amd64:core-3.1-ia32:core-3.1-noarch:graphics-3.1-amd64:graphics-3.1-ia32:graphics-3.1-noarch
Distributor ID:    RedHatEnterpriseServer
Description:    Red Hat Enterprise Linux Server release 5.3 (Tikanga)
Release:    5.3
Codename:    Tikanga
这个命令适合所有的linux发行版本。

#cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.3 (Tikanga)
或者
#rpm -qa redhat-releaseredhat-release-5Server-5.3.0.3

这个两种方法只适用RH系列