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diff3(1)							      diff3(1)

NAME
       diff3 - 3-way differential file comparison

SYNOPSIS
       file1 file2 file3

DESCRIPTION
       compares	 three	versions  of  a file, and prints disagreeing ranges of
       text flagged with these codes:

	      all three files differ
	      file1	is different
	      file2	is different
	      file3	is different

       The type of change required to convert a given range of a given file to
       some other is indicated in one of these ways:

	      Text is to be appended after line number
			     n1 in file f, where f = or

	      Text is to be changed in the range line
			     n1 through line n2.  If n1 = n2, the range can be
			     abbreviated to n1.

       The original contents of the range follows immediately after a  indica‐
       tion.   When  the  contents of two files are identical, the contents of
       the lower-numbered file is suppressed.

	      Produces a script for the
			editor that can be used to incorporate into file1  all
			changes between file2 and file3 (see ed(1)); i.e., the
			changes that normally would be flagged and

	      Produces a script to incorporate only changes flagged

	      Produces a script to incorporate only changes flagged

	      Produces a script that will incorporate all
			changes between file2 and file3, but treat overlapping
			changes	 (that	is, changes that would be flagged with
			in normal listing) differently. The overlapping	 lines
			in  both  files	 will  be  inserted by the edit script
			bracketed by and lines.

	      Produces a script that will incorporate only changes flagged
			, but treat these changes in the manner of option.

       The following command applies the resulting script to file1.

EXTERNAL INFLUENCES
   International Code Set Support
       Single- and multi-byte character code sets are supported.

WARNINGS
       Text lines that consist of a single period defeat

       Files longer than 64K bytes do not work.

FILES
SEE ALSO
       diff(1).

								      diff3(1)

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