for i in {5..8}; do scp -r /bigdata/spark-2.2.0-bin-hadoop2.7/ node-$i:/bigdata;done
将当前终端的 /bigdata/spark-2.2.0-bin-hadoop2.7/文件夹分发到node-5,node-6,node-7,node-8的bigdata目录下，
