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RCSDIFF.1LP
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RCSDIFF(1) Programmer's Manual RCSDIFF(1)
NAME
rcsdiff - compare RCS revisions
SYNOPSIS
rcsdiff [ -k_✓s_✓u_✓b_✓s_✓t ] [ -q ] [ -r_✓r_✓e_✓v_✓1 [ -r_✓r_✓e_✓v_✓2 ] ] [ -V_✓n ] [
_✓d_✓i_✓f_✓f _✓o_✓p_✓t_✓i_✓o_✓n_✓s ] _✓f_✓i_✓l_✓e ...
DESCRIPTION
rcsdiff runs diff(1) to compare two revisions of each RCS
file given. A file name ending in ,v is an RCS file name,
otherwise a working file name. rcsdiff derives the working
file name from the RCS file name and vice versa, as
explained in co(1). Pairs consisting of both an RCS and a
working file name may also be specified.
The option -q suppresses diagnostic output. Zero, one, or
two revisions may be specified with -r. The option -k_✓s_✓u_✓b_✓s_✓t
affects keyword substitution when extracting revisions, as
described in co(1); for example, -kk -r1.1 -r1.2 ignores
differences in keyword values when comparing revisions 1.1
and 1.2. To avoid excess output from locker name substitu-
tion, -kkvl is assumed if (1) at most one revision option is
given, (2) no -k option is given, (3) -kkv is the default
keyword substitution, and (4) the working file's mode would
be produced by co -l. See co(1) for details about -V. Oth-
erwise, all options of diff(1) that apply to regular files
are accepted, with the same meaning as for diff.
If both _✓r_✓e_✓v_✓1 and _✓r_✓e_✓v_✓2 are omitted, rcsdiff compares the
latest revision on the default branch (by default the trunk)
with the contents of the corresponding working file. This
is useful for determining what you changed since the last
checkin.
If _✓r_✓e_✓v_✓1 is given, but _✓r_✓e_✓v_✓2 is omitted, rcsdiff compares
revision _✓r_✓e_✓v_✓1 of the RCS file with the contents of the
corresponding working file.
If both _✓r_✓e_✓v_✓1 and _✓r_✓e_✓v_✓2 are given, rcsdiff compares revisions
_✓r_✓e_✓v_✓1 and _✓r_✓e_✓v_✓2 of the RCS file.
Both _✓r_✓e_✓v_✓1 and _✓r_✓e_✓v_✓2 may be given numerically or symbolically.
EXAMPLE
The command
rcsdiff f.c
compares the latest revision on the default branch of the
RCS file RCS/f.c,v to the contents of the working file f.c.
Printed 1/29/91 1990/09/26 1
RCSDIFF(1) Programmer's Manual RCSDIFF(1)
DIAGNOSTICS
Exit status is 0 for no differences during any comparison, 1
for some differences, 2 for trouble.
IDENTIFICATION
Author: Walter F. Tichy.
Revision Number: 5.2; Release Date: 1990/09/26.
Copyright c 1982, 1988, 1989 by Walter F. Tichy.
Copyright c 1990 by Paul Eggert.
SEE ALSO
ci(1), co(1), diff(1), ident(1), rcs(1), rcsintro(1),
rcsmerge(1), rlog(1)
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.
Printed 1/29/91 1990/09/26 2