Installed the NiFi via HomeBrew on my Mac laptop with OS X (El Capital v 10.11.6) and ran the start / run commands, gave the expected result.
But when I say `nifi install` , I couldn't do so. It gave the following message.
`Installing Apache NiFi as a service is not supported on OS X or Cygwin.`
and I could see, that the nifi.sh *says the above message if it detected the OS as *Darwin (
and unfortunately the OS X is Darwin. But in the "Getting Started with Apache NiFi", it says installing nifi as a service is supported for OS X users. (Link -> https://nifi.apache.org/docs/nifi-docs/html/getting-started.html#installing-as-a-service)