常用linux查看版本信息的方法：
1.cat /proc/version
[root@cdc ~]# cat /proc/version
Linux version 2.6.32-642.el6.x86_64 ([email protected]) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-17) (GCC) ) #1 SMP Wed Apr 13 00:51:26 EDT 2016
2.uname -a
[root@cdc ~]# uname -a
Linux cdc 2.6.32-642.el6.x86_64 #1 SMP Wed Apr 13 00:51:26 EDT 2016 x86_64 x86_64 x86_64 GNU/Linux
3.cat /etc/issue
[root@cdc ~]# cat /etc/issue
Red Hat Enterprise Linux Server release 6.8 (Santiago)
Kernel \r on an \m
4.lsb_release -a
[root@cdc ~]# 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: RedHatEnterpriseServer
Description: Red Hat Enterprise Linux Server release 6.8 (Santiago)
Release: 6.8
Codename: Santiago