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From "Dmitry Sivachenko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10797) Hardcoded path to "bash" is not portable
Date Wed, 09 Jul 2014 04:19:04 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14055832#comment-14055832
] 

Dmitry Sivachenko commented on HADOOP-10797:
--------------------------------------------

Okay, I see.  The point to use /bin/sh is that most of these shell scripts are very simple
and do not require any bash-specific things.  And since there are systems that do not ship
bash by default, this would eliminate one extra dependency.  But it is not a big deal if you
prefer to stick with more heavyweight bash instead.

> 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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