title: Why kill [pid] does not work?
body: <p>I face a problem trying to kill a pid. I have a ruby pid that i try to kill but nothing happens.</p>
  
  <pre><code>lsof -i   (service list)
  </code></pre>
  
  <p>ruby      282 xxx    3u  IPv4 0xffffff80111f4c20      0t0  TCP localhost:49206 (LISTEN)
  ruby      282 xxx    9u  IPv4 0xffffff800fa29c20      0t0  TCP *:hbci (LISTEN)
  ruby      282 xxx   10u  IPv4 0xffffff80115406c0      0t0  TCP localhost:hbci->localhost:49400 (ESTABLISHED)</p>
  
  <pre><code>kill 282
  </code></pre>
  
  <p>The same things </p>
  
  <pre><code>ps -A | grep ruby
  </code></pre>
  
  <p>282 ??         0:24.54 /xxx/.rvm/gems/ruby-1.9.2-p320/gems/ruby-debug-ide-0.4.17.beta14/bin/rdebug-ide<br>
    324 ttys000    0:00.00 grep ruby</p>
  
  <pre><code>kill 282
  </code></pre>
  
  <p>still nothing.</p>
  
  <p>May be someone faced already this issue?</p>