title: "find command -mtime 0" not getting the file i expect
body: <p>I am trying to find a file that are 0 days old. Below are the steps I performed to test this</p>
  
  <pre><code>$ ls
  $ ls -ltr
  total 0
  $ touch tmp.txt
  $ ls -ltr
  total 0
  -rw-r-----   1 tstUser tstUser           0 Feb 28 20:02 tmp.txt
  $ find * -mtime 0
  $
  $ find * -mtime -1
  tmp.txt
  $
  </code></pre>
  
  <p>Why is '-mtime 0' not getting me the file?</p>
  
  <p>What is the exact difference between '-mtime 0' and '-mtime -1'?</p>
  
  <p>Im sure there must be other ways to find files that are 0 days old in unix, but im curious in understanding how this '-mtime' actually works.</p>