cp /root/.ssh/id_rsa.pub /root/.ssh/authorized_keyscp /root/.ssh/id_
阅读背景：
redHat6.4-x86_64下Hadoop 2.7.2 伪分布式安装
来源：互联网
cp /root/.ssh/id_rsa.pub /root/.ssh/authorized_keyscp /root/.ssh/id_
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