linux查看系统版本

[rusky@rheltest1 ~]$ cat /proc/version 
Linux version 2.6.32-279.el6.x86_64 (mockbuild@x86-008.build.bos.redhat.com) (gcc version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC) ) #1 SMP Wed Jun 13 18:24:36 EDT 2012
[rusky@rheltest1 ~]$ uname -a
Linux rheltest1.com 2.6.32-279.el6.x86_64 #1 SMP Wed Jun 13 18:24:36 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux
[rusky@rheltest1 ~]$ lsb_release -a
LSB Version:    :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 6.3 (Santiago)
Release:        6.3
Codename:       Santiago
[rusky@rheltest1 ~]$ cat /etc/issue
Red Hat Enterprise Linux Server release 6.3 (Santiago)
Kernel \r on an \m

[rusky@rheltest1 ~]$ cat /etc/redhat-release 
Red Hat Enterprise Linux Server release 6.3 (Santiago)
[rusky@rheltest1 ~]$