title: How does the AND-operator work in the FIND-command?
body: <p><em>My <a href="https://stackoverflow.com/questions/895501/union-intersection-and-exclude-with-the-find-command/895652#895652">last question</a> expanded, so let's analyse things separately.</em></p>
  
  <p><strong>AND-operater, Intersection?</strong></p>
  
  <p>I will give an example:</p>
  
  <pre><code>$ find . | awk -F"/" '{ print $2 }'
  
  .zcompdump
  .zshrc
  .zshrc_copy
  .zshrc_somequy
  .bashrc
  .emacs
  
  $ find ~/bin/FilesDvorak/.* -maxdepth 0 | awk -F"/" '{ print $6 }'
  
  .bashrc
  .emacs
  .gdbinit
  .git
  .profile
  </code></pre>
  
  <p>When I save the outputs to separate lists, I cannot understand why the command does not take the common things:</p>
  
  <pre><code>find -f all_files -and -f right_files .
  </code></pre>
  
  <p>I want only:</p>
  
  <pre><code>.bashrc
  .emacs
  </code></pre>