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HDFS命令涉及两类,一类是hadoop命令,一类是hdfs命令,功能也分为两类,第一类是HDFS文件操作命令,第二类是HDFS管理命令。 二者都是shell命令,真正的命令只有hadoop和hdfs,而无所谓的ls/mv/cp/cat/mkdir…dfs/setQuota/fsck…等命令,后者都是以入参传递给hadoop和hdfs的。 具体实现参考bin/hadoop和bin/hdfs。hadoop族...