yanghua commented on issue #509: KYLIN-3864 Provide a function to judge whether the os type is Mac os x or not URL: https://github.com/apache/kylin/pull/509#issuecomment-473759267 Hi @shaofengshi Now, In kylin project, there are many places where the code would check the os type is **Darwin** (Mac os X) such as `download-spark.sh`, `download-flink.sh`, `tool-wrapper.sh`. And there are some places where Kylin is not compatible with Mac os X (it does not check the os type), it caused some errors, such as [KYLIN-3756](https://issues.apache.org/jira/browse/KYLIN-3756) and [KYLIN-3757](https://issues.apache.org/jira/browse/KYLIN-3757). This util method provides a general function to verify whether the current os type is Mac os X or not. By providing this function, we can do generic checking for the different `like-UNIX` os, and fix those compatible issues existing in the shell script.
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