title: Shell Script -x Flag Meaning
body: <p>I have a #!/bin/sh script that has the following line:</p>
  
  <pre><code>if [ ! -x "$TEST_SLAPD" ]
  </code></pre>
  
  <p><code>$TEST_SLAPD</code> is the full path to a .bat file.</p>
  
  <p>I am wondering what the <code>-x</code> flag means in the context of that <code>if</code> statement?</p>