MERGE(1) General Commands Manual MERGE(1)NAME
merge - three-way file merge
SYNOPSIS
merge [ -p ] file1 file2 file3
DESCRIPTION
Merge incorporates all changes that lead from file2 to file3 into file1. The result goes to std. output if -p is present, into file1 other-
wise. Merge is useful for combining separate changes to an original. Suppose file2 is the original, and both file1 and file3 are modifica-
tions of file2. Then merge combines both changes.
An overlap occurs if both file1 and file3 have changes in a common segment of lines. Merge prints how many overlaps occurred, and includes
both alternatives in the result. The alternatives are delimited as follows:
<<<<<<< file1
lines in file1
=======
lines in file3
>>>>>>> file3
If there are overlaps, the user should edit the result and delete one of the alternatives.
IDENTIFICATION
Author: Walter F. Tichy, Purdue University, West Lafayette, IN, 47907.
Revision Number: 3.0 ; Release Date: 82/11/25 .
Copyright (C) 1982 by Walter F. Tichy.
SEE ALSO
diff3 (1), diff (1), rcsmerge (1), co (1).
Purdue University 6/29/83 MERGE(1)
Check Out this Related Man Page
MERGE(1) General Commands Manual MERGE(1)NAME
merge - three-way file merge
SYNOPSIS
merge [ options ] file1 file2 file3
DESCRIPTION
merge incorporates all changes that lead from file2 to file3 into file1. The result ordinarily goes into file1. merge is useful for com-
bining separate changes to an original. Suppose file2 is the original, and both file1 and file3 are modifications of file2. Then merge
combines both changes.
A conflict occurs if both file1 and file3 have changes in a common segment of lines. If a conflict is found, merge normally outputs a
warning and brackets the conflict with and lines. A typical conflict will look like this:
file A
lines in file A
=======
lines in file B
file B
If there are conflicts, the user should edit the result and delete one of the alternatives.
OPTIONS -A Output conflicts using the -A style of diff3(1), if supported by diff3. This merges all changes leading from file2 to file3 into
file1, and generates the most verbose output.
-E, -e These options specify conflict styles that generate less information than -A. See diff3(1) for details. The default is -E. With
-e, merge does not warn about conflicts.
-L label
This option may be given up to three times, and specifies labels to be used in place of the corresponding file names in conflict
reports. That is, merge -L x -L y -L z a b c generates output that looks like it came from files x, y and z instead of from files
a, b and c.
-p Send results to standard output instead of overwriting file1.
-q Quiet; do not warn about conflicts.
-V Print version number.
DIAGNOSTICS
Exit status is 0 for no conflicts, 1 for some conflicts, 2 for trouble.
IDENTIFICATION
Author: Walter F. Tichy.
Manual Page Revision: ; Release Date: .
Copyright (C) 1982, 1988, 1989 Walter F. Tichy.
Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995 Paul Eggert.
SEE ALSO diff3(1), diff(1), rcsmerge(1), co(1).
BUGS
It normally does not make sense to merge binary files as if they were text, but merge tries to do it anyway.
GNU MERGE(1)
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