Essential Hadoop HDFS Commands Well Explained | Kundan Kumar | #hadoop #hdfs #commands

In this video, we delve into the fundamental commands of Hadoop's HDFS (Hadoop Distributed File System) to help you manage and interact with your data efficiently. Whether you're a beginner or looking to sharpen your skills, this tutorial will guide you through the most important HDFS commands you'll need to know.

What You'll Learn:
1. Introduction to HDFS Commands: Understand the basics of HDFS and its role in the Hadoop ecosystem.

2. Listing Files and Directories: Learn how to use the hdfs dfs -ls , hdfs dfs -lsr, hdfs dfs -ls -R command to list files and directories and directory tree.

3. File Operations: Explore commands like hdfs dfs -put, hdfs dfs -get, and hdfs dfs -copyFromLocal to manage file transfers.

4. Directory Operations: Discover how to create and delete directories using hdfs dfs -mkdir and hdfs dfs -rm -r.

5. File System Checks: Understand how to check the health of your HDFS using hdfs fsck and other related commands.

Thank you for watching, and let's embark on this journey to mastering Hadoop together!

[chris-cdli]

this is a a well explained tutorial i have ever seen thank you for sharing knowledge sir

[pamellamutoniingabire]

Great tutorial indeed!This was so helpful.clear and concise. Thanks alot for sharing

[ishimwejoshua]

This is a fabulous tutorial indeed. please keep on giving us informative tutorials.

[PhilemonIransubije]

I found this difference:
-put: Can copy from local file systems or from other compatible file systems (like S3) to HDFS.
-copyFromLocal: Specifically designed to copy from the local file system to HDFS
also,
-put: By default, it will overwrite the destination if the file already exists.
-copyFromLocal: Will throw an error if the file already exists at the destination

However, "-put" supports more options and flags for advanced use cases

[EmmaBemmly]

The sign before the direction to put or copy to is changing from forward backslash to backward backslash . 😅

[PhilemonIransubije]

Sir, after uploading a file, it is creating 1 replication for it. i changed the hdfs-site to 2, but no change. any help?

[meghanajyothinagaram]

Hi sir can you please tell commands for count the number of words using(wc-w)
count number of letters(wc-m)