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A.4 Extensions in Brian Kernighan's 'awk'
=========================================

Brian Kernighan has made his version available via his home page (*note
Other Versions::).

   This minor node describes common extensions that originally appeared
in his version of 'awk':

   * The '**' and '**=' operators (*note Arithmetic Ops:: and *note
     Assignment Ops::)

   * The use of 'func' as an abbreviation for 'function' (*note
     Definition Syntax::)

   * The 'fflush()' built-in function for flushing buffered output
     (*note I/O Functions::)

   *Note Common Extensions:: for a full list of the extensions available
in his 'awk'.