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OpenSolaris 2009.06 - man page for bdiff (opensolaris section 1)

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bdiff(1)				  User Commands 				 bdiff(1)

NAME
       bdiff - big diff

SYNOPSIS
       bdiff filename1 filename2 [n] [-s]

DESCRIPTION
       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 indicated 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 differences.

OPTIONS
       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.

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

FILES
       /tmp/bd?????

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

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

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

DIAGNOSTICS
       Use help for explanations.

SunOS 5.11				   14 Sep 1992					 bdiff(1)
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