title: Escape 'At sign' (@) in Oracle SQLPlus script filename
body: <p>When trying to execute a script in SQLPlus that has an "At Sign" (@) in the filename, the @ symbol is expanded to the SID:</p>
  
  <p><code>SQL&gt; @ foo@bar.sql
  SP2-0310: unable to open file "fooorclbar.sql"</code></p>
  
  <p><code>SQL&gt; START foo@bar.sql
  SP2-0310: unable to open file "fooorclbar.sql"</code></p>
  
  <p>Is there a way to escape the @ symbol in SQLPlus?</p>