fsck command is used for getting the details of files and directories in HDFS.
Main uses of fsck command in HDFS are as follows:
1. delete: We use this option to delete files in HDFS.
2. move: This option is for moving corrupt files to lost/found.
3. locations: This option prints all the locations of a block in HDFS.
4. racks: This option gives the network topology of data-node locations.
5. blocks: This option gives the report of blocks in HDFS.
