Pig: Grunt Usage

Grunt* is Pig’s interactive shell.

 

• Start

#pig -x local    //interacte with local file system

#pig                //interacte with hadoop cluster

 

• Exit

grunt>quit;

or

CTRL+D

 

Note:Grunt provides command-line history and editing,as well as Tab completion. It does not provide filename completion via the Tab key. It does not provide a number of commands found in standard Unix shells, such as pipes, re-direction, and background execution.

 

• HDFS Commands

grunt>fs -ls

grunt>fs -help 

 

• Controlling Pig

grunt>kill jobid

grunt>exec [[-param param_name = param_value]] [[-param_file filename]] script

grunt>run [[-param param_name = param_value]] [[-param_file filename]] script