title: What error does "unexpected tIVAR, expecting $end" point to?
body: <p>I am just trying to enter the command <code>$ rvm use 1.9.3@rails3tutorial2ndEd --create --default</code> into interactive Ruby (command taken from Michael Hartl's tutorial).  </p>
  
  <p>I keep getting error messages about an unexpected tIVAR.  After several attempts to tweak the command, I seem to have pared the error message down to:  <code>syntax error, unexpected tIVAR, expecting $end.</code>  So now what?</p>