BDIFF(1)                 DOMAIN/IX SYS5                  BDIFF(1)



NAME
     bdiff - big diff

USAGE
     bdiff file1 file2 [ n ] [-s]

DESCRIPTION
     Bdiff compares two files and shows which lines differ.  It
     produces results similar to diff(1), but allows processing
     of much larger files.

     Bdiff ignores lines common to the beginning of both files,
     splits the remainder of each file into n-line segments, and
     invokes diff upon corresponding segments.  The default value
     of n is 3500, but you may optionally supply an alternate
     numeric value.  This is useful when 3500-line segments are
     too large for diff, causing it to fail.  If you supply a
     dash (-) in place of file1 (file2), bdiff reads the standard
     input.

     The output of bdiff is exactly that of diff, with line
     numbers adjusted to account for the segmenting of the files
     (i.e., appearing as if the files had been processed whole).
     Note that because of the segmenting of the files, bdiff does
     not necessarily find the smallest sufficient set of file
     differences.

OPTIONS
     -s        Silent.  Prohibits printing of diagnostics by
               bdiff (but does not suppress possible exclamations
               by diff).

FILES
     /bin/bdiff
     /tmp/bd?????

DIAGNOSTICS
     Use help(1) for explanations.

RELATED INFORMATION
     diff(1).












Printed 12/4/86                                           BDIFF-1