title: Linux bulk file rename/copy
body: <p>In Linux I have a permanent directory structure which stores 5 different types of files for each month of the year going back to 2005, like so</p>
  
  <p>2005/01/file1 file2 file3 file4 file5</p>
  
  <p>2005/02/file1 file2 file3 file4 file5</p>
  
  <p>...</p>
  
  <p>2015/11/file1 file2 file3 file4 file5</p>
  
  <p>2015/12/file1 file2 file3 file4 file5</p>
  
  <p>I need to replace each instance of file1 from an identical temporary directory structure, except each leaf in the temporary structure only has file1 (file2/3/4/5 do not exist).  How can I do one bulk command to rename each file1 to file1.bak in the permanent structure, and then a command to copy each new file1 instance to the proper location in the permanent structure?</p>