diff3
compare three files line by line
see also :
cmp - diff - sdiff
Synopsis
diff3
[OPTION]... MYFILE OLDFILE YOURFILE
add an example, a script, a trick and tips
examples
source
echo usage: diff3 file1 file2
file3 1>&2
exit
fi
trap "rm -f
/tmp/d3[ab]$$" 0 1 2 13 15
diff $1 $3
>/tmp/d3a$$
diff $1 $3
>/tmp/d3a$$
diff $2 $3
>/tmp/d3b$$
/usr/lib/diff3 $e
/tmp/d3[ab]$$ $1
$2 $3
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 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.
copyright
Copyright © 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.
reporting bugs
Report bugs to: bug-diffutils[:at:]gnu[:dot:]org
GNU diffutils home page:
<http://www.gnu.org/software/diffutils/>
General help using GNU software:
<http://www.gnu.org/gethelp/>
see also
cmp ,
diff , sdiff
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.
author
Written by
Randy Smith.