[root@localhost tmp]# cat /etc/centos-release CentOS Linux release 7.1.1503 (Core) [root@localhost tmp]# uname -r 3.10.0-229.el7.x86_64 [root@localhost tmp]# uname -a Linux localhost.localdomain 3.10.0-229.el7.x86_64 #1 SMP Fri Mar 6 11:36:42 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux [root@localhost tmp]#
dd
原文：http://www.cnblogs.com/hanggegege/p/6560473.html