Shulou(Shulou.com)06/01 Report--

This article mainly shows you "what are the hadoop commands", the content is easy to understand, clear, hope to help you solve your doubts, the following let the editor lead you to study and learn "what are the hadoop commands" this article?

View: hadoop fs-ls directory

Download: hadoop fs-get directory

Upload: hadoop fs-put local file directory, overlay upload-put-f.

View file size: hadoop fs-du-s-h directory

Create directory: hadoop fs-mkdir directory

Move files: hadoop fs-mv source directory target directory

Delete a file or directory: hadoop fs-rm-r-f directory

View file: hadoop fs-text (or-cat) file | head-10

View the task log: hadoop job-status job_1543854528701_473503

Merge file: hadoop fs-cat path / * | hadoop fs-copyFromLocal-generate path / file name

Specify directory permissions:

Sudo-u hdfs hadoop fs-chown cloudil:cloudil / user/cloudil/

Sudo-u hdfs hadoop fs-chown cloudil: / user/cloudil/

Run the jar package: hadoop jar jar package path

The above is all the contents of this article "what are the hadoop commands?" Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.