title: How to completely remove GCC on CentOS?
body: <p>CentOS: I noticed I have two versions of GCC, one in /usr/bin/gcc (4.4.7) and /usr/local/bin/gcc (4.8). This causes a conflict.</p>
  
  <p>How can I completely remove/purge the 4.4.7? I tried to override but it still causes my other program to crash.</p>
  
  <pre><code>sudo ln -s /opt/rh/devtoolset-2/root/usr/bin/* /usr/bin/
  </code></pre>