1. Prepare WordCounting File
準備一個用於 word counting 的文字檔案。本範例使用 The Hunger Games 三部曲的內容。從 The Hunger Game 下載檔案並存到可存取的位置。
2. Create a New Folder in HDFS
$ /usr/local/hadoop/bin/hadoop fs -mkdir /wordcount3. Copy File from Local to HDFS Folder
$ /usr/local/hadoop/bin/hadoop fs -copyFromLocal /TheHungerGames.txt /wordcount驗證複製成功：
$ /usr/local/hadoop/bin/hadoop fs -cat /wordcount/TheHungerGames.txt也可以透過瀏覽器確認。
4. Execute mapreduce-examples.jar
$ /usr/local/hadoop/bin/hadoop jar /usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.6.0.jar wordcount /wordcount /output5. Download Results
執行成功後，下載並檢視輸出結果。
原文發表於 Medium