The Mac has this notion of invisible files. Sometimes you want to edit them. There are third party utilities like File Buddy which do this, but you can also “natively”:http://kb.iu.edu/data/ajyj.html view them if you squint sideways. Here are the instructions:
In Mac OS X, how do I view invisible files? – Knowledge Base
OS X 10.5.x
1. With the Finder active, from the File menu, select Find… .
2. In the Searching window that opens, select how broad you want the search to be. For example, you can choose to search your entire Mac or just your home folder.
3. In the first pulldown menu to the left, choose Other… , and in the dialog box that appears, scroll down quite a ways and double-click File Invisible. In the drop-down menu to the right of the first one, select whether you are searching for Visible Items, Invisible Items, or both. The search will then begin.
3. To narrow your search, you can add additional search criteria, such as a filename, file size, or creation date. Each time you click the + (plus sign) on the right side of the search window, you will add another row to the search criteria.
OS X 10.4.x
1. With the Finder active, from the File menu, select Find… .
2. In the New Search window that opens, select how broad you want the search to be. For example, you can choose to search your entire computer or just your home folder. In the pull-down menu labeled Kind, choose Other… , and in the sheet that appears, find and double-click Visibility. In the Visible or Invisible pull-down menu to the right, select whether you are searching for Visible Items or Invisible Items. It will then begin searching.
3. To narrow your search, you may add additional search criteria, such as a filename, file size, or creation date. Click the + (plus sign) on the right side of the search window. Each time you click it, you will add another row to the search criteria.
