centos 查看版本

有以下命令可以查看：

# lsb_release -a

[jifeng@jifeng01 hadoop]$ 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 5.6 (Tikanga)
Release:        5.6
Codename:       Tikanga

[jifeng@jifeng02 ~]$ lsb_release -a
LSB Version:    :base-4.0-ia32:base-4.0-noarch:core-4.0-ia32:core-4.0-noarch:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-ia32:printing-4.0-noarch
Distributor ID: CentOS
Description:    CentOS release 6.4 (Final)
Release:        6.4
Codename:       Final

这个命令适用于所有的linux，包括Redhat、SuSE、Debian等发行版。

[jifeng@jifeng01 hadoop]$  uname
Linux
[jifeng@jifeng01 hadoop]$  uname -r
2.6.18-238.el5
[jifeng@jifeng01 hadoop]$  uname -i
x86_64
[jifeng@jifeng01 hadoop]$  uname -a
Linux jifeng01 2.6.18-238.el5 #1 SMP Sun Dec 19 14:22:44 EST 2010 x86_64 x86_64 x86_64 GNU/Linux
[jifeng@jifeng01 hadoop]$ 

以下二种方法适用于RedHat,CentOS

cat /etc/redhat-release

[jifeng@jifeng01 hadoop]$ cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.6 (Tikanga)

[jifeng@jifeng02 ~]$ cat /etc/redhat-release
CentOS release 6.4 (Final)

rpm -q redhat-release 

[jifeng@jifeng01 hadoop]$ rpm -q redhat-release 
redhat-release-5Server-5.6.0.3