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

This article will explain in detail how to use the hadoop dfs command under Linux. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

Hadoop is a software framework capable of distributed processing of a large amount of data, and plays an important role in big data's technical system. Hadoop is the foundation of big data's technology.

Create a directory

Hadoop dfs-mkdir / home upload a file or directory to hdfs

Hadoop dfs-put hello / hadoop dfs-put hellodir/ View the directory

Hadoop dfs-ls / create an empty file

Hadoop dfs-touchz / 361way delete a file

Hadoop dfs-rm / 361way delete a directory

Hadoop dfs-rmr / home rename

Hadoop dfs-mv / hello1 / hello2 view the file

Hadoop dfs-cat / hello will merge all the contents in the specified directory into a file and download them to the local file.

Hadoop dfs-getmerge / hellodir wa uses du file and directory size

Hadoop dfs-du / copy the directory locally

Hadoop dfs-copyToLocal / home localdir check the status of dfs

Hadoop dfsadmin-report to view running Java programs

This is the end of jps's article on "how to use hadoop dfs commands under Linux". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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.