title: How can I use Mono.Unix on Linux?
body: <p>I have a C# app originally written in Windows that I'm now running in Linux on MonoDevelop. It works fine but now I need to recognise symbolic links. I found <a href="https://stackoverflow.com/questions/19428170/detecting-symbolic-links-and-pipes-in-mono">this</a> answer but when I add:</p>
  
  <pre><code>using Mono.Unix;
  </code></pre>
  
  <p>I get the error "The type or namespace name 'Unix' does not exist in the namespace 'Mono'. Are you missing an assembly reference (CS0234)?"</p>