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https://issues.apache.org/jira/browse/PIG-218?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12592007#action_12592007
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Alan Gates commented on PIG-218:
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Will this change handle commands that have a unix pipe in them? If so, can we
add a test for that?
> parameter substitution broken with some commands
> ------------------------------------------------
>
> Key: PIG-218
> URL: https://issues.apache.org/jira/browse/PIG-218
> Project: Pig
> Issue Type: Bug
> Reporter: Olga Natkovich
> Assignee: Olga Natkovich
> Attachments: PIG-218.patch
>
>
> If parameter value is generated via a command, it would fail for some
> commands. Example:
> %declare cmd `/usr/local/bin/perl -e 'print "studenttab10k"'`
> This command fails because currently the command is executed via call to
> Runtime.exec(cmd). In this case, default tokenizer is used to split the
> command and it does not respect the quotes.
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