1.查看内核版本

• cat /proc/version

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

• uname  -r

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

• uname -a

• [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

2.查看操作系统版本

• lsb_release -a

• [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

• cat /etc/issue

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