title: write unicode character for escape telnet
body: <p>i'm writing a java code that connects and executes commands in a telnet based equipment.
  when i login, appears a message like this:</p>
  
  <pre><code>Trying 10.11.115.160...
  Connected to 10.11.115.160.
  Escape character is '^]'.
  </code></pre>
  
  <p>the problem is that when i want logout, don't know how to write this char '^]' using a simple string, like this:</p>
  
  <pre><code>telnetClient.execute("^]");
  </code></pre>
  
  <p>or</p>
  
  <pre><code>telnetClient.execute("\uXXXX");
  </code></pre>
  
  <p>in a linux terminal, it works using ctrl + ].
  i don't found this char in the unicode table.</p>
  
  <p>someone knows? thanks in advance</p>