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Diff3,1
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1990-05-20
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DIFF3(1) (Editing Package) DIFF3(1)
NAME
diff3 - 3-way differential file comparison
SYNOPSIS
diff3 [ -ex3 ] file1 file2 file3
DESCRIPTION
The diff3 command compares three versions of a file, and
publishes disagreeing ranges of text flagged with these
codes:
==== all three files differ
====1 file1 is different
====2 file2 is different
====3 file3 is different
The type of change suffered in converting a given range of a
given file to some other file is indicated in one of these
ways:
f : n1 a Text is to be appended after line
number n1 in file f, where f = 1, 2, or
3.
f : n1 , n2 c Text is to be changed in the range line
n1 to line n2. If n1 = n2, the range
may be abbreviated to n1.
The original contents of the range follows immediately after
a c indication. When the contents of two files are
identical, the contents of the lower-numbered file is
suppressed.
Under the -e option, diff3 publishes a script for the editor
ed that incorporates into file1 all changes between file2
and file3, i.e., the changes that normally would be flagged
==== and ====3. Option -x (-3) produces a script to
incorporate only changes flagged ==== (====3). The
following command will apply the resulting script to file1.
(cat script; echo '1,$p') | ed - file1
FILES
/tmp/d3*
/usr/lib/diff3prog
SEE ALSO
diff(1)
BUGS
Text lines that consist of a single . defeat -e.
Files longer than 64K bytes do not work.