title: I need a grep command that will pull the usernames only from the /etc/passwd file in linux
body: <p>I need a grep or another like command that will pull the usernames only from the /etc/passwd file in linux.  Anything before the colon. I know this is doing with reg ex however I am not nearly experienced enough...<br>
  The following command will give all ACTUAL users, I need a way to pipe to grep or another line of code to only display the username portion.</p>
  
  <pre><code>awk -v LIMIT=500 -F: '{print $1}' '($3&gt;=LIMIT) &amp;&amp; ($3!=65534)' /etc/passwd
  </code></pre>