HDFS commands
HDFS commands
| • Usage: |
| hadoop fs -mkdir |
| • Example: |
| hadoop fs -mkdir /user/shiva/dir1 /user/shiva/dir2 |
| 2. List the contents of a directory. |
| • Usage: |
| hadoop fs -ls |
| • Example: |
| hadoop fs -ls /user/shiva |
| 3. Put and Get a file in HDFS. |
| • Usage(Put): |
| hadoop fs -put |
| • Example: |
| hadoop fs -put /home/shiva/Samplefile.txt /user/shiva/dir3/ |
| • Usage(Get): |
| hadoop fs -get |
| • Example: |
| hadoop fs -get /user/shiva/dir3/Samplefile.txt /home/ |
| 4. See contents of a file |
| • Usage: |
| hadoop fs -cat |
| • Example: |
| hadoop fs -cat /user/shiva/dir1/abc.txt |
| 5. Copy a file from source to destination |
| • Usage: |
| hadoop fs -cp |
| • Example: |
| hadoop fs -cp /user/shiva/dir1/abc.txt /user/shiva/dir2 |
| 6. Copy a file from/To Local file system to HDFS |
| • Usage of copyFromLocal: |
| hadoop fs -copyFromLocal |
| • Example: |
| hadoop fs -copyFromLocal /home/shiva/abc.txt /user/shiva/abc.txt |
| • Usage of copyToLocal |
| hadoop fs -copyToLocal [-ignorecrc] [-crc] URI |
| 7. Move file from source to destination. |
| • Usage: |
| hadoop fs -mv |
| • Example: |
| hadoop fs -mv /user/shiva/dir1/abc.txt /user/shiva/dir2 |
| 8. Remove a file or directory in HDFS. |
| • Usage: |
| hadoop fs -rm |
| • Example: |
| hadoop fs -rm /user/shiva/dir1/abc.txt |
| . |
| • Usage of recursive version of delete: |
| hadoop fs -rmr |
| • Example: |
| hadoop fs -rmr /user/shiva/ |
| 9. Display last few lines of a file. |
| • Usage: |
| hadoop fs -tail |
| • Example: |
| hadoop fs -tail /user/shiva/dir1/abc.txt |
版权声明：本文内容由网络用户投稿，版权归原作者所有，本站不拥有其著作权，亦不承担相应法律责任。如果您发现本站中有涉嫌抄袭或描述失实的内容，请联系我们jiasou666@gmail.com 处理，核实后本网站将在24小时内删除侵权内容。
相关文章
发表评论
暂时没有评论，来抢沙发吧~