title: How to remove unwanted charecters using split in tcl
body: <p>Here is an example</p>
  
  <pre><code>Interface {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} IP-Address {} {} {} {} {} OK? Method Status {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {Protocol
  FastEthernet0/0} {} {} {} {} {} {} {} {} {} {} {} unassigned {} {} {} {} {} YES unset {} administratively down down {} {} {} {
  FastEthernet0/1} {} {} {} {} {} {} {} {} {} {} {} unassigned {} {} {} {} {} YES unset {} administratively down down
  </code></pre>
  
  <p>I want remove <code>{}</code> in this.<br>
  I assumed all the above string interface variable</p>
  
  <pre><code>set interface [string trimright [string trimleft $interface "{}"] "{}"]
  </code></pre>
  
  <p>but it doesn't work. How to remove the <code>{}</code> in my example?</p>