查看linux系统版本

cat /proc/version

[xingxing.dxx@30_28_6_20 ~]$ cat /proc/version
Linux version 2.6.32-573.7.1.el6.x86_64 (mockbuild@c6b8.bsys.dev.centos.org) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-16) (GCC) ) #1 SMP Tue Sep 22 22:00:00 UTC 2015

[xingxing.dxx@30_28_6_20 ~]$ uname -r
2.6.32-573.7.1.el6.x86_64

[xingxing.dxx@30_28_6_20 ~]$ uname -a
Linux 30_28_6_20 2.6.32-573.7.1.el6.x86_64 #1 SMP Tue Sep 22 22:00:00 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

[xingxing.dxx@30_28_6_20 ~]$ 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: CentOS
Description:    CentOS release 6.7 (Final)
Release:        6.7
Codename:       Final

[xingxing.dxx@30_28_6_20 ~]$ cat /etc/issue
CentOS release 6.7 (Final)
Kernel \r on an \m