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https://issues.apache.org/jira/browse/HADOOP-6101?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12882772#action_12882772
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Steve McCarthy commented on HADOOP-6101:
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I ran into this as well. An alternate solution would be to change the lines in
the scripts to
bin=`cd "$bin" > /dev/null; pwd`
> CDPATH environment variable causes bin scripts to fail.
> -------------------------------------------------------
>
> Key: HADOOP-6101
> URL: https://issues.apache.org/jira/browse/HADOOP-6101
> Project: Hadoop Common
> Issue Type: Bug
> Components: scripts
> Affects Versions: 0.19.1
> Reporter: Phil Hagelberg
> Priority: Minor
>
> Most of the scripts in bin/* assume that cd produces no output. But when
> using bash (and some other shells) cd will output the destination directory
> if the CDPATH environment variable is set. CDPATH is very useful, and it's
> unfortunate to have to unset it to use Hadoop.
> The offending line (in start-all.sh, though most of the scripts exhibit the
> problem) is:
> bin=`cd "$bin"; pwd`
> Adding this to the top of each affected script will fix the problem:
> unset CDPATH
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