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RCSMERGE(1) USER COMMANDS RCSMERGE(1)
NAME
rcsmerge - merge RCS revisions
SYNOPSIS
rcsmerge [_o_p_t_i_o_n_s] _f_i_l_e
DESCRIPTION
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 oth-
ers 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 symbolically.
rcsmerge prints a warning if there are overlaps, and delim-
its the overlapping regions as explained in merge(1). The
command is useful for incorporating changes into a checked-
out revision.
OPTIONS
-k_s_u_b_s_t
Use _s_u_b_s_t style keyword substitution. See co(1) for
details. For example, -kk -r1.1 -r1.2 ignores differ-
ences in keyword values when merging the changes from
1.1 to 1.2.
-p[_r_e_v]
Send the result to standard output instead of overwrit-
ing the working file.
-q[_r_e_v]
Run quietly; do not print diagnostics.
-r[_r_e_v]
Merge with respect to revision _r_e_v. Here an empty _r_e_v
stands for the latest revision on the default branch,
normally the head.
-V_n Emulate RCS version _n. See co(1) for details.
-x_s_u_f_f_i_x_e_s
Use _s_u_f_f_i_x_e_s to characterize RCS files. See ci(1) for
details.
GNU Last change: 1991/08/19 1
RCSMERGE(1) USER COMMANDS RCSMERGE(1)
EXAMPLES
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 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 revi-
sion 2.8.1.1 and execute co -j:
ci -r2.8.1.1 f.c
co -r3.4 -j2.8:2.8.1.1 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.
ENVIRONMENT
RCSINIT
options prepended to the argument list, separated by
spaces. See ci(1) for details.
DIAGNOSTICS
Exit status is 0 for no overlaps, 1 for some overlaps, 2 for
trouble.
IDENTIFICATION
Author: Walter F. Tichy.
Revision Number: 5.3; Release Date: 1991/08/19.
Copyright c 1982, 1988, 1989 by Walter F. Tichy.
Copyright c 1990, 1991 by Paul Eggert.
SEE ALSO
ci(1), co(1), ident(1), merge(1), rcs(1), rcsdiff(1), rcsin-
tro(1), rlog(1), rcsfile(5)
Walter F. Tichy, RCS--A System for Version Control,
_S_o_f_t_w_a_r_e--_P_r_a_c_t_i_c_e & _E_x_p_e_r_i_e_n_c_e 15, 7 (July 1985), 637-654.
GNU Last change: 1991/08/19 2