title: "RVM is not a function" error
body: <p>RVM is installed on my machine (running Mac OSX 10.6.8), correctly and it runs fine. The odd thing is that to run it, I have to use <code>source ~/.rvm/scripts/rvm</code> for every new session. I tried making a symlink from it to <code>/opt/local/bin/rvm</code>, but when it runs it does nothing. I also tried creating a symlink from <code>~/.rvm/bin/rvm</code> to <code>/opt/local/bin/rvm</code>, and when I run <code>rvm</code> in the Terminal it displays the help page, as expected. But when I try <code>rvm use some_ruby_version</code> it always displays "RVM is not a function, selecting rubies with 'rvm use ...' will not work.". How can I fix this?</p>
  
  <p>My goal is to get it to the the point that I <em>don't</em> have to type the source command every session, and for some reason <code>~/.profile</code> does not execute.</p>