readme file

from Jargon File (4.4.4, 14 Aug 2003)
README file
 n.

   Hacker's-eye introduction traditionally included in the top-level
   directory of a Unix source distribution, containing a pointer to more
   detailed documentation, credits, miscellaneous revision history,
   notes, etc. In the Mac and PC worlds, software is not usually
   distributed in source form, and the README is more likely to contain
   user-oriented material like last-minute documentation changes, error
   workarounds, and restrictions. When asked, hackers invariably relate
   the README convention to the famous scene in Lewis Carroll's Alice's
   Adventures In Wonderland in which Alice confronts magic munchies
   labeled "Eat Me" and "Drink Me".

   The file may be named README, or READ.ME, or rarely ReadMe or
   readme.txt or some other variant. The all-upper-case spellings,
   however, are universal among Unix programmers. By ancient tradition,
   real source files have all-lowercase names and all-uppercase is
   reserved for metadata, comments, and grafitti. This is functional;
   because 'A' sorts before 'a' in ASCII, the README will appear in
   directory listings before any source file.
    
from The Free On-line Dictionary of Computing (8 July 2008)
README file

   <convention> An introduction traditionally included in the
   top-level directory of a {Unix} {source} distribution,
   containing a pointer to more detailed documentation, credits,
   miscellaneous revision history, notes, etc.  The file may be
   named README, or READ.ME, or rarely ReadMe or readme.txt or
   some other variant.

   In the {Macintosh} and {IBM PC} worlds, software is not
   usually distributed in source form, and the README is more
   likely to contain user-oriented material like last-minute
   documentation changes, error workarounds, and restrictions.

   The README convention probably follows the famous scene in
   Lewis Carroll's "Alice's Adventures In Wonderland" in which
   Alice confronts magic munchies labelled "Eat Me" and "Drink
   Me".

   [{Jargon File}]

   (1995-02-28)
    

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