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From "Christopher Berner (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8386) hadoop script doesn't work if 'cd' prints to stdout (default behavior in Ubuntu)
Date Thu, 27 Sep 2012 03:19:08 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8386?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13464391#comment-13464391
] 

Christopher Berner commented on HADOOP-8386:
--------------------------------------------

Just checked my installation and I'm using bash and the output of "type cd" says "cd is a
shell builtin".

Will try and test this on a fresh install of 12.04 and see if I can reproduce it.
                
> hadoop script doesn't work if 'cd' prints to stdout (default behavior in Ubuntu)
> --------------------------------------------------------------------------------
>
>                 Key: HADOOP-8386
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8386
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: scripts
>    Affects Versions: 1.0.2
>         Environment: Ubuntu
>            Reporter: Christopher Berner
>         Attachments: hadoop.diff
>
>
> if the 'hadoop' script is run as 'bin/hadoop' on a distro where the 'cd' command prints
to stdout, the script will fail due to this line: 'bin=`cd "$bin"; pwd`'
> Workaround: execute from the bin/ directory as './hadoop'
> Fix: change that line to 'bin=`cd "$bin" > /dev/null; pwd`'

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