title: Clarification of bash trap
body: <p>I'm currently going trough bash tutorial :</p>
  
  <p><a href="http://linuxconfig.org/Bash_scripting_Tutorial" rel="nofollow">http://linuxconfig.org/Bash_scripting_Tutorial</a></p>
  
  <p>And I came to the part which I'm having troubles to understand :</p>
  
  <pre><code>#!/bin/bash
  # bash trap command
  trap bashtrap INT
  # bash clear screen command
  clear;
  # bash trap function is executed when CTRL-C is pressed:
  # bash prints message =&gt; Executing bash trap subrutine !
  bashtrap()
  {
      echo "CTRL+C Detected !...executing bash trap !"
  }
  # for loop from 1/10 to 10/10
  for a in `seq 1 10`; do
      echo "$a/10 to Exit." 
      sleep 1;
  done
  echo "Exit Bash Trap Example!!!"
  </code></pre>
  
  <p>Where exactly do you specify ok trap <code>CTRL+C</code>? This line <code>trap bashtrap INT</code> ? does INT mean something?</p>