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DIFF3(1)			 User Commands			      DIFF3(1)



NAME
       diff3 - compare three files line by line

SYNOPSIS
       diff3 [OPTION]... MYFILE OLDFILE YOURFILE

DESCRIPTION
       Compare three files line by line.

       Mandatory  arguments  to	 long  options are mandatory for short options
       too.

       -A, --show-all
	      output all changes, bracketing conflicts

       -e, --ed
	      output ed script incorporating changes from OLDFILE to  YOURFILE
	      into MYFILE

       -E, --show-overlap
	      like -e, but bracket conflicts

       -3, --easy-only
	      like -e, but incorporate only nonoverlapping changes

       -x, --overlap-only
	      like -e, but incorporate only overlapping changes

       -X     like -x, but bracket conflicts

       -i     append `w' and `q' commands to ed scripts

       -m, --merge
	      output  actual  merged file, according to -A if no other options
	      are given

       -a, --text
	      treat all files as text

       --strip-trailing-cr
	      strip trailing carriage return on input

       -T, --initial-tab
	      make tabs line up by prepending a tab

       --diff-program=PROGRAM
	      use PROGRAM to compare files

       -L, --label=LABEL
	      use LABEL instead of file name (can  be  repeated	 up  to	 three
	      times)

       --help display this help and exit

       -v, --version
	      output version information and exit

       The  default  output format is a somewhat human-readable representation
       of the changes.

       The -e, -E, -x, -X (and corresponding long) options cause an ed	script
       to be output instead of the default.

       Finally,	 the  -m  (--merge) option causes diff3 to do the merge inter-
       nally and output the actual merged file.	 For unusual  input,  this  is
       more robust than using ed.

       If a FILE is `-', read standard input.  Exit status is 0 if successful,
       1 if conflicts, 2 if trouble.

AUTHOR
       Written by Randy Smith.

REPORTING BUGS
       Report bugs to: bug-diffutils@gnu.org
       GNU diffutils home page: <http://www.gnu.org/software/diffutils/>
       General help using GNU software: <http://www.gnu.org/gethelp/>

COPYRIGHT
       Copyright (C) 2011 Free Software Foundation, Inc.  License GPLv3+:  GNU
       GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This  is	 free  software:  you  are free to change and redistribute it.
       There is NO WARRANTY, to the extent permitted by law.

SEE ALSO
       cmp(1), diff(1), sdiff(1)

       The full documentation for diff3 is maintained as a Texinfo manual.  If
       the  info  and  diff3 programs are properly installed at your site, the
       command

	      info diff3

       should give you access to the complete manual.



diffutils 3.3			  March 2013			      DIFF3(1)