title: How can I find the location of the tcsh shell script I'm executing?
body: <p>Say I put an executable tcsh file in  /path/to/my_script.csh</p>
  
  <p>and my current directory is anywhere, for example I'm in /path</p>
  
  <p>So I type to/my_script.csh</p>
  
  <p>I want to have a line in my_script.csh that will return "/path/to/my_script.csh" - like ruby's </p>
  
  <pre><code>__FILE__
  </code></pre>