rcsmerge man page on Oracle
rcsmerge - merge RCS revisions
rcsmerge [options] file
rcsmerge incorporates the changes between two revisions of an RCS file
into the corresponding working file.
Filenames 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.
-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 infor‐
mation 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 differences in keyword val‐
ues 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
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
-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)
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 18.104.22.168 and
execute co -j:
ci -r22.214.171.124 f.c
co -r3.4 -j2.8:126.96.36.199 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. A
backslash escapes spaces within an option. The RCSINIT options
are prepended to the argument lists of most RCS commands. Use‐
ful RCSINIT options include -q, -V, -x, and -z.
An integer lim, measured in kilobytes, specifying the threshold
under which commands will try to use memory-based operations for
processing the RCS file. (For RCS files of size lim kilobytes
or greater, RCS will use the slower standard input/output rou‐
tines.) Default value is 256.
TMPDIR Name of the temporary directory. If not set, the environment
variables TMP and TEMP are inspected instead and the first value
found is taken; if none of them are set, a host-dependent
default is used, typically /tmp.
Exit status is 0 for no overlaps, 1 for some overlaps, 2 for trouble.
Author: Walter F. Tichy.
Manual Page Revision: 5.9.0; Release Date: 2014-05-03.
Copyright © 2010-2013 Thien-Thi Nguyen.
Copyright © 1990, 1991, 1992, 1993, 1994, 1995 Paul Eggert.
Copyright © 1982, 1988, 1989 Walter F. Tichy.
ci(1), co(1), ident(1), merge(1), rcs(1), rcsdiff(1), rlog(1), rcs‐
Walter F. Tichy, RCS--A System for Version Control, Software--Practice
& Experience 15, 7 (July 1985), 637-654.
The full documentation for RCS is maintained as a Texinfo manual. If
the info(1) and RCS programs are properly installed at your site, the
should give you access to the complete manual. Additionally, the RCS
has news and links to the latest release, development site, etc.
GNU RCS 5.9.0 2014-05-03 RCSMERGE(1)
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