title: In bash, how does one clear the current input?
body: <p>Suppose in bash you start writing a command like:</p>
  
  <pre><code>$ rm -rf /foo/bar/really/long/path/here
  </code></pre>
  
  <p>and then realize you don't want to execute this after all.  Is there a way to clear the input with one or two keystrokes?</p>
  
  <p>What I have been doing lately is prepending echo and enclosing the input in quotes (Ctrl+A, <code>echo "</code>, Ctrl+E, <code>"</code>) then hitting enter.  Is there a faster way?</p>