1.查看系统版本
[root@hadoopnn-01 yum.repos.d]# lsb_release -a
LSB Version: :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch
Distributor ID: CentOS
Description: CentOS release 6.5 (Final)
Release: 6.5
Codename: Final
You have mail in /var/spool/mail/root
[root@hadoopnn-01 yum.repos.d]#
[root@hadoopnn-01 yum.repos.d]# lsb_release -a
LSB Version: :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch
Distributor ID: CentOS
Description: CentOS release 6.5 (Final)
Release: 6.5
Codename: Final
You have mail in /var/spool/mail/root
[root@hadoopnn-01 yum.repos.d]#
