bdiff - big diff


     bdiff filename1 filename2 [n] [-s]


     bdiff is used in a manner analogous to diff  to  find  which
     lines  in  filename1  and filename2 must be changed to bring
     the files into agreement. Its purpose is to allow processing
     of  files too large for diff. If filename1 (filename2) is -,
     the standard input is read.

     bdiff ignores lines common to the beginning of  both  files,
     splits  the remainder of each file into n-line segments, and
     invokes diff on corresponding  segments.  If  both  optional
     arguments are specified, they must appear in the order indi-
     cated above.

     The output of bdiff is  exactly  that  of  diff,  with  line
     numbers  adjusted to account for the segmenting of the files
     (that is, to make it look as if the files had been processed
     whole). Note:  Because of the segmenting of the files, bdiff
     does not necessarily find a smallest sufficient set of  file


     n     The number of line segments. The value of n is 3500 by
           default.  If  the optional third argument is given and
           it is numeric, it is used as the value for n. This  is
           useful  in those cases in which 3500-line segments are
           too large for diff, causing it to fail.

     -s    Specifies that no diagnostics are  to  be  printed  by
           bdiff  (silent  option). Note:  However, this does not
           suppress possible diagnostic messages from diff, which
           bdiff calls.


     See largefile(5) for the  description  of  the  behavior  of
     bdiff  when  encountering  files  greater than or equal to 2
     Gbyte ( 2**31 bytes).




     See attributes(5) for descriptions of the  following  attri-

    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    | Availability                | SUNWesu                     |
    | CSI                         | enabled                     |


     diff(1), attributes(5), largefile(5)


     Use help for explanations.

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