Steve Loughran created HADOOP-9693:
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             Summary: Shell should add a probe for OSX
                 Key: HADOOP-9693
                 URL: https://issues.apache.org/jira/browse/HADOOP-9693
             Project: Hadoop Common
          Issue Type: Improvement
            Reporter: Steve Loughran
            Priority: Trivial


the {{Shell}} class looks for Windows and Linux and sets static fields to show 
this. For tests, it's sometimes useful to know if a host is OS/X, as its 
filesystem is different. Although this is easy to test in code 
[https://developer.apple.com/library/mac/#technotes/tn2002/tn2110.html], having 
this in one place makes it easier to maintain if future java versions ever 
behave differently

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