title: how to read / copy a tmp file which exists for a very short time
body: <p>my nginx creates tmp files for requests which are bigger than 16kb. I am trying to read this tmp files but they only exist for a rly short period of time (1ms?). Is there unix command / programm which can help me to read this files before they are gone?</p>
  
  <p>the ngnix warning message looks like </p>
  
  <pre><code>a client request body is buffered to a temporary file /var/lib/nginx/body/0000001851
  </code></pre>
  
  <p><strong>EDIT</strong>
  i am not in the position to alter the ngnix source code nor am i able to edit the source code of the request origin. I just want to take a look at this files for debugging purpose as i cant imagine what kind of request will bloat up to 16k</p>