操作hadoop常用的命令 素颜马尾好姑娘i 2022-04-10 13:16 200阅读 0赞 1.查看hdfs某一文件夹的大小: hadoop fs -du -h /路径 ![20190107144018582.png][] 2.查看文本的前十行、后十行....... 随机返回指定行数的样本数据 hadoop fs -cat /test/gonganbu/scene\_analysis\_suggestion/\* | shuf -n 5 返回前几行的样本数据 hadoop fs -cat /test/gonganbu/scene\_analysis\_suggestion/\* | head -100 返回最后几行的样本数据 hadoop fs -cat /test/gonganbu/scene\_analysis\_suggestion/\* | tail -5 查看文本行数 hadoop fs -cat hdfs://172.16.0.226:8020/test/sys\_dict/sysdict\_case\_type.csv |wc -l 查看文件大小(单位byte) hadoop fs -du hdfs://172.16.0.226:8020/test/sys\_dict/\* hadoop fs -count hdfs://172.16.0.226:8020/test/sys\_dict/\* 3.kill -s 9 端口号 (安全删除) ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTgwNDA0OQ_size_16_color_FFFFFF_t_70][] [20190107144018582.png]: /images/20220330/a147a133c5094b84940d5fdc23505db9.png [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTgwNDA0OQ_size_16_color_FFFFFF_t_70]: /images/20220330/910e9bf2aa234f459ac047e8188637c2.png
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