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https://issues.apache.org/jira/browse/PIG-139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12582447#action_12582447
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Pete Wyckoff commented on PIG-139:
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IT would be great if the shell was extensible somehow.  At FB we have a command 
line interface with auto completion for commands as well as table names, column 
names and types. 

IF there are hooks to apply completion when the user has to enter a input 
source as well as the ability to add commands - e.g., show tables, show 
databaes, describe table, alter ... it would be useful as well.



> Command line editing, history and more for Grunt
> ------------------------------------------------
>
>                 Key: PIG-139
>                 URL: https://issues.apache.org/jira/browse/PIG-139
>             Project: Pig
>          Issue Type: Improvement
>         Environment: Grunt
>            Reporter: Amir Youssefi
>            Assignee: Amir Youssefi
>
> We need to add support of command line editing, history and more for Grunt. 

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