[jira] [Assigned] (SPARK-32443) Fix testCommandAvailable to use POSIX compatible `command -v`

["Apache Spark (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-32443?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-32443:
------------------------------------

    Assignee: Apache Spark

> Fix testCommandAvailable to use POSIX compatible `command -v`
> -------------------------------------------------------------
>
>                 Key: SPARK-32443
>                 URL: https://issues.apache.org/jira/browse/SPARK-32443
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 2.1.3, 2.2.3, 2.3.4, 2.4.6, 3.0.0
>            Reporter: Dongjoon Hyun
>            Assignee: Apache Spark
>            Priority: Major
>
> Currently, we run the command to check the existence. This is dangerous and doesn't work sometimes.
> {code}
> scala> sys.process.Process("cat").run().exitValue()
> res0: Int = 0
> scala> sys.process.Process("ls").run().exitValue()
> LICENSE
> NOTICE
> bin
> doc
> lib
> man
> res1: Int = 0
> scala> sys.process.Process("rm").run().exitValue()
> usage: rm [-f | -i] [-dPRrvW] file ...
>        unlink file
> res4: Int = 64
> {code}
> {code}
> scala> sys.process.Process("command -v rm").run().exitValue()
> /bin/rm
> res5: Int = 0
> {code}



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