title: fread: file not found
body: <p>I'm trying to open a 2.2G file using <code>fread</code> from the <code>data.table</code> package, but keeping getting the same error (it works for other files, which are less 1G tough):</p>
  
  <pre><code>library(data.table)
  data.table 1.9.4  For help type: ?data.table
  *** NB: by=.EACHI is now explicit. See README to restore previous behaviour.
  
  train  = data.table::fread('train.csv')
  </code></pre>
  
  <p><code>Error in data.table::fread("train.csv") : 
   file not found: train.csv</code></p>
  
  <p>Of course, the file is present (<code>read.csv()</code> works, but is really slow).
  I'm running Ubuntu 12.04 LTS, on a i686. Appreciate any help!</p>
  
  <p><strong>NOTE</strong>: The file i'm, trying to read is 'train.gz', which can be found at:
  <a href="https://www.kaggle.com/c/tradeshift-text-classification/data" rel="nofollow">https://www.kaggle.com/c/tradeshift-text-classification/data</a>.</p>
  
  <p>It's a 2.2G csv file, pretty standard.</p>
  
  <p>EDIT: When i use <code>verbose=TRUE</code>, it says:</p>
  
  <p><code>Input contains no \n. Taking this to be a filename to open</code></p>