Section: User Commands (1)
Updated: December 2018
GNU diff3 - compare three files line by line
]... MYFILE OLDFILE YOURFILE
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
like -x, but bracket conflicts
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 carriage return on input
- -T, --initial-tab
make tabs line up by prepending a tab
use PROGRAM to compare files
- -L, --label=LABEL
use LABEL instead of file name
(can be repeated up to three times)
display this help and exit
- -v, --version
output version information and exit
The default output format is a somewhat human-readable representation of
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 internally
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.
Written by Randy Smith.
Report bugs to: email@example.com
GNU diffutils home page: <https://www.gnu.org/software/diffutils/
General help using GNU software: <https://www.gnu.org/gethelp/
Copyright © 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <https://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.
The full documentation for
is maintained as a Texinfo manual. If the
programs are properly installed at your site, the command
should give you access to the complete manual.