title: No scl command after installing Software Collections
body: <p>I have CentOS 7 and after having installed the Software Collections (SCL) I do not find any <code>scl</code> command:</p>
  
  <pre><code>$ yum install centos-release-scl
  $ which scl
  /usr/bin/which: no scl in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/usr/lib64/openmpi/bin:/root/bin)
  </code></pre>
  
  <p>Does anybody know how to "see" such command?</p>
  
  <p>Thanks a lot</p>