DIF Revision Date
 
Definition
The date the DIF was created or last revised
 
Syntax 
DIF_Revision_Date: [yyyy-mm-dd]
 
Specifications
  • May be used only once
  • Years should be four-digits
  • Month and day of month should be two digits, with leading zeroes if necessary
  • Year, month and day must be entered in the form: yyyy-mm-dd
 
Recommendations
  • If DIF is updated, creation date becomes date of last revision
 
Example 
DIF_Revision_Date: 2003-12-31

 

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This document should be cited as:
Directory Interchange Format (DIF) Writer's Guide, 2008.
Global Change Master Directory. National Aeronautics and Space Administration. [http://gcmd.nasa.gov/User/difguide/].