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https://issues.apache.org/jira/browse/HADOOP-10797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14055514#comment-14055514
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Giridharan Kesavan commented on HADOOP-10797:
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I was against using /bin/sh and not against /usr/bin/env bash
> Hardcoded path to "bash" is not portable
> ----------------------------------------
>
> Key: HADOOP-10797
> URL: https://issues.apache.org/jira/browse/HADOOP-10797
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.4.1
> Reporter: Dmitry Sivachenko
> Attachments: bash.patch
>
>
> Most of shell scripts use shebang ling in the following format:
> #!/usr/bin/env bash
> But some scripts contain hardcoded "/bin/bash" which is not portable.
> Please use #!/usr/bin/env bash instead for portability.
> PS: it would be much better to switch to standard Bourne Shell /bin/sh, do
> these scripts really need bash?
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