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bdiff(1)							      bdiff(1)

NAME    [Toc]    [Back]

     bdiff - big diff

SYNOPSIS    [Toc]    [Back]

     bdiff file1 file2 [ n ] [-s]

DESCRIPTION    [Toc]    [Back]

     bdiff is used in a	manner analogous to diff to find which lines in	file1
     and file2 must be changed to bring	the files into agreement.  Its purpose
     is	to allow processing of files too large for diff.  If file1 (file2) is
     -,	the standard input is read.

     Valid options to bdiff are:

     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, that	this does not suppress possible
	  diagnostic messages from diff, which bdiff calls.

     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 that	because	of the
     segmenting	of the files, bdiff does not necessarily find a	smallest
     sufficient	set of file differences.

FILES    [Toc]    [Back]


SEE ALSO    [Toc]    [Back]


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