Hadoop Commands

• hadoop archive
  The hadoop archive command creates a Hadoop archive, a file that contains other files. A Hadoop archive always has a *.har extension.
• hadoop classpath
  The hadoop classpath command prints the class path needed to access the Hadoop jar and the required libraries.
• hadoop daemonlog
  The hadoop daemonlog command gets and sets the log level for each daemon.
• hadoop distcp
  The hadoop distcp command is a tool used for large inter- and intra-cluster copying.
• hadoop fs
  The hadoop fs command runs a generic file system user client that interacts with the MapR file system.
• hadoop jar
  The hadoop jar command runs a program contained in a JAR file. Users can bundle their MapReduce code in a JAR file and execute it using this command.
• hadoop job
  The hadoop job command enables you to manage MapReduce jobs.
• hadoop mfs
  The hadoop mfs command displays directory information and contents, creates symbolic links and hard links, sets, gets, and removes Access Control Expressions (ACE) on files and directories, and sets compression and chunk size on a directory.
• hadoop mradmin
  The hadoop mradmin command runs Map-Reduce administrative commands.
• hadoop pipes
  The hadoop pipes command runs a pipes job.
• hadoop queue
  The hadoop queue command displays job queue information.
• hadoop version
  The hadoop version command prints the hadoop software version.
• hadoop conf
  The hadoop conf command outputs the configuration information for this node to standard output.