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Changing Hadoop classpath

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To execute the wordcount example I had to issue the command:

hadoop jar /usr/hdp/2.2.4.2-2/hadoop-mapreduce/hadoop-mapreduce-examples.jar wordcount /hin /hout

But is there anything I can edit within Hadoop, ie classpath, so I just issue

hadoop jar hadoop-mapreduce-examples.jar wordcount /hin /hout


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