rcsmerge man page on 4.4BSD
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 revisions 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 symboli‐
rcsmerge prints a warning if there are overlaps, and delimits the over‐
lapping regions as explained in merge(1). The command is useful for
incorporating changes into a checked-out revision.
Use subst style keyword substitution. See co(1) for details.
For example, -kk -r1.1 -r1.2 ignores differences in keyword val‐
ues when merging the changes from 1.1 to 1.2.
Send the result to standard output instead of overwriting the
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
-Vn Emulate RCS version n. See co(1) for details.
Use suffixes to characterize RCS files. See ci(1) for details.
Suppose you have released revision 2.8 of f.c. Assume furthermore that
after you complete an unreleased revision 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
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 220.127.116.11 and
execute co -j:
ci -r18.104.22.168 f.c
co -r3.4 -j2.8:22.214.171.124 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.
Revision Number: 5.3; Release Date: 1991/08/19.
Copyright © 1982, 1988, 1989 by Walter F. Tichy.
Copyright © 1990, 1991 by Paul Eggert.
ci(1), co(1), ident(1), merge(1), rcs(1), rcsdiff(1), rcsintro(1),
Walter F. Tichy, RCS--A System for Version Control, Software--Practice
& Experience 15, 7 (July 1985), 637-654.
GNU 1991/08/19 RCSMERGE(1)
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