title: Remove underscores from all filenames within a directory
body: <p>I have a folder "model" with files named like:</p>
  
  <pre><code>a_EmployeeData
  a_TableData
  b_TestData
  b_TestModel
  </code></pre>
  
  <p>I basically need to drop the underscore and make them:</p>
  
  <pre><code>aEmployeeData
  aTableData
  bTestData
  bTestModel
  </code></pre>
  
  <p>Is there away in the Unix Command Line to do so?</p>