#创建几个目录 hadoop fs -mkdir /user/ hadoop fs -mkdir /user/walle hadoop fs -mkdir /user/walle/wordcount #把本地文件拷贝到dfs里 hadoop dfs -copyFromLocal ./inputText.txt /user/walle/wordcount #运行，注意output3目录不用创建 hadoop jar /usr/local/Cellar/hadoop/3.1.0/libexec/share/hadoop/mapreduce/hadoop-mapreduce-examples-3.1.0.jar wordcount /user/walle/wordcount/inputText.txt /user/walle/wordcount/output3#创建几个目录 hadoop fs -mkdir /user/ hadoop fs -m
阅读背景：
hadoop 运行wordcount 例子
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