[root@LAMP1 config]# cat /proc/version

Linux version 2.6.32-279.el6.x86_64 (mockbuild@c6b9.bsys.dev.centos.org) (gcc version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC) ) #1 SMP Fri Jun 22 12:19:21 UTC 2012

[root@LAMP1 config]# uname -a

Linux LAMP1.1 2.6.32-279.el6.x86_64 #1 SMP Fri Jun 22 12:19:21 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

[root@LAMP1 config]# uname -r

2.6.32-279.el6.x86_64

查看版本：

[root@LAMP1 config]# cat /etc/issue

CentOS release 6.3 (Final)

Kernel \r on an \m

[root@LAMP1 config]# cat /etc/redhat-release

CentOS release 6.3 (Final)

查看64位还是32位：

[root@LAMP1 config]# getconf LONG_BIT

64