title: How to create a .conf file on the fly in Bash
body: <p>I have a proprietary command-line program that I want to call in a bash script.  It has several options in a .conf file that are not available as command-line switches.  I can point the program to any .conf file using a switch, <code>-F</code>.</p>
  
  <p>I would rather not manage a .conf file separate from this script.  Is there a way to create a temporary document to use a .conf file?</p>
  
  <p>I tried the following:</p>
  
  <p><code>echo setting=value|my_prog -F -</code></p>
  
  <p>But it does not recognize the <code>-</code> as stdin.</p>