title: Ruby and console output
body: <p>It is possible, generally, by means of Ruby library to output a symbol at specific location on a common Windows console screen, which seems to be 80x25 ?</p>
  
  <p>The problem came up with the need to draw a specific 'tree' structure like this, for example:</p>
  
  <pre><code>│
  ├──x──y──z
  │        │
  │        ├──a──b──c
  │        │
  │        └──e──f──g
  │
  └──u──v──o
  </code></pre>