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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 AT 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) 2017 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 3.6                      May 2017                           DIFF3(1)