刚开始学习hadoop.第一步CentOS, 遇到的第一个问题: centos中-bash: vim: command not found

1. rpm -qa|grep vim

显示-bash: vim: command not found

2.yum -y install vim*

报错:Loaded plugins:fastestmirror Determining fastest mirrors

Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=6&arch=x86_64$repo=os error was

14:PYCURL ERROR 6 - "Couldn't resolve host 'mirrorlist.centos.org'"

Error: Cannot find a valid baseurl for repo:base

[待解决]