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rcsmerge

rcsmerge [options ] [diff3 options ] file

Perform a three-way merge of file revisions, taking two differing versions and incorporating the changes into the working file . You must provide either one or two revisions to merge (typically with -r ). Overlaps are handled the same as with merge , by placing warnings in the resulting file. rcsmerge accepts the standard options -q , -V , -V n , -T , -x , and -z . rcsmerge exits with a status of 0 (no overlaps), 1 (some overlaps), or 2 (unknown problem).

rcsmerge accepts the -A , -e , and -E options for diff3 and simply passes them on, causing diff3 to perform the corresponding kind of merge. See merge , and also see the entry for diff3 in Chapter 2 for details. (The -A option is for the GNU version of diff3 .)

Options

-k c

When comparing revisions, expand keywords using style c . (See co for values of c .)

-p [R ]

Send merged version to standard output instead of overwriting file .

-r [R ]

Merge revision R or, if no R is given, merge the latest revision.

Examples

Suppose you need to add updates to an old revision (1.3) of prog.c , but the current file is already at revision 1.6. To incorporate the changes:

co -l prog.c

	Get latest revision

(Edit latest revision byadding updates for revision 1.3, then:)

rcsmerge -p -r1.3 -r1.6 prog.c > prog.updated.c

Undo changes between revisions 3.5 and 3.2, and overwrite the working file:

rcsmerge -r3.5 -r3.2 chap08


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