title: How to install TCL package textutil, tdom and udp?
body: <p>./Tcltest.tcl
  I am having trouble executing the TCL script in my test environment.</p>
  
  <pre>
  Sourcing files.
  INIT : ERROR while sourcing
  can't find package textutil
  </pre>
  
  <p>The file also contains</p>
  
  <pre><code>package require textutil
  package require tdom
  package require udp
  </code></pre>
  
  <p>Please help.</p>