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RCSMERGE(1)                                                        RCSMERGE(1)

       rcsmerge - merge RCS revisions

       rcsmerge [options] file

       rcsmerge incorporates the changes between two revisions of an RCS file into the corresponding working file.

       Pathnames  matching  an  RCS  suffix  denote  RCS  files; all others denote working files.  Names are paired as
       explained in ci(1).

       At least one revision must be specified with one of the options described below, usually -r.  At most two revi-
       sions may be specified.  If only one revision is specified, the latest revision on the default branch (normally
       the highest branch on the trunk) is assumed for the second revision.  Revisions may be specified numerically or

       rcsmerge prints a warning if there are overlaps, and delimits the overlapping regions as explained in merge(1).
       The command is useful for incorporating changes into a checked-out revision.

       -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, rcsmerge does not warn about conflicts.

              Use subst style keyword substitution.  See co(1) for details.  For example, -kk -r1.1 -r1.2 ignores dif-
              ferences in keyword values when merging the changes from 1.1 to 1.2.  It normally does not make sense to
              merge binary files as if they were text, so rcsmerge refuses to merge files if -kb expansion is used.

              Send the result to standard output instead of overwriting the working file.

              Run quietly; do not print diagnostics.

              Merge with respect to revision rev.  Here an empty rev stands for the latest  revision  on  the  default
              branch, normally the head.

       -T     This option has no effect; it is present for compatibility with other RCS commands.

       -V     Print RCS's version number.

       -Vn    Emulate RCS version n.  See co(1) for details.

              Use suffixes to characterize RCS files.  See ci(1) for details.

       -zzone Use zone as the time zone for keyword substitution.  See co(1) for details.

       Suppose  you have released revision 2.8 of f.c.  Assume furthermore that after you complete an unreleased revi-
       sion 3.4, you receive updates to release 2.8 from someone else.  To combine the updates to 2.8 and your changes
       between 2.8 and 3.4, put the updates to 2.8 into file f.c and execute

           rcsmerge  -p  -r2.8  -r3.4  f.c  >f.merged.c

       Then  examine f.merged.c.  Alternatively, if you want to save the updates to 2.8 in the RCS file, check them in
       as revision and execute co -j:

           ci  -r2.8.1.1  f.c
           co  -r3.4  -j2.8:  f.c

       As another example, the following command undoes the changes between revision 2.4 and  2.8  in  your  currently
       checked out revision in f.c.

           rcsmerge  -r2.8  -r2.4  f.c

       Note the order of the arguments, and that f.c will be overwritten.

              options prepended to the argument list, separated by spaces.  See ci(1) for details.

       Exit status is 0 for no overlaps, 1 for some overlaps, 2 for trouble.

       Author: Walter F. Tichy.
       Manual Page Revision: 5.6; Release Date: 1995/06/01.
       Copyright (C) 1982, 1988, 1989 Walter F. Tichy.
       Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995 Paul Eggert.

       ci(1), co(1), ident(1), merge(1), rcs(1), rcsdiff(1), rcsintro(1), rlog(1), rcsfile(5)
       Walter F. Tichy, RCS--A System for Version Control, Software--Practice & Experience 15, 7 (July 1985), 637-654.

GNU                               1995/06/01                       RCSMERGE(1)