Best Hadoop HDFS Commands: Top 10 with Examples and Uses
Humpy Adepu
hdfs dfs -ls – Lists files and directories in HDFS, helping users explore storage structure, verify uploads, and manage distributed file system contents efficiently.
hdfs dfs -mkdir – Creates directories in HDFS, enabling structured data storage, organization, and preparation for large scale distributed data processing tasks.
hdfs dfs -put – Uploads local files to HDFS, allowing seamless data ingestion into distributed storage for analytics, processing, and big data workflows.
hdfs dfs -get – Downloads files from HDFS to local system, enabling data retrieval for analysis, backup, or external processing tasks.
hdfs dfs -rm – Deletes files or directories from HDFS, helping manage storage space and remove outdated or unnecessary data efficiently.
hdfs dfs -cat – Displays file contents directly in terminal, useful for quick data inspection and validation without downloading entire datasets locally.
hdfs dfs -du – Shows disk usage of files and directories, helping monitor storage consumption and optimize resource allocation across HDFS clusters.
hdfs dfs -copyFromLocal – Copies files from local system to HDFS, supporting data migration workflows and seamless integration into distributed storage systems.
hdfs dfs -copyToLocal – Transfers files from HDFS to local machine, enabling external analysis, sharing, and backup operations efficiently.