RCSDIFF(1)                                                                                                            RCSDIFF(1)



NAME
       rcsdiff - compare RCS revisions

SYNOPSIS
       rcsdiff [ -ksubst ] [ -q ] [ -rrev1 [ -rrev2 ] ] [ -T ] [ -V[n] ] [ -xsuffixes ] [ -zzone ] [ diff options ] file ...

DESCRIPTION
       rcsdiff runs diff(1) to compare two revisions of each RCS file given.

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

       The option -q suppresses diagnostic output.  Zero, one, or two revisions may be specified with -r.   The  option  -ksubst
       affects  keyword substitution when extracting revisions, as described in co(1); for example, -kk -r1.1 -r1.2 ignores dif-
       ferences in keyword values when comparing revisions 1.1 and 1.2.  To avoid excess output from locker  name  substitution,
       -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 -T, -V, -x and -z.
       Otherwise, all options of diff(1) that apply to regular files are accepted, with the same meaning as for diff.

       If both rev1 and rev2 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 rev1 is given, but rev2 is omitted, rcsdiff compares revision rev1 of the RCS file with the  contents  of  the  corre-
       sponding working file.

       If both rev1 and rev2 are given, rcsdiff compares revisions rev1 and rev2 of the RCS file.

       Both rev1 and rev2 may be given numerically or symbolically.

EXAMPLE
       The command

               rcsdiff  f.c

       compares the latest revision on the default branch of the RCS file to the contents of the working file f.c.

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

DIAGNOSTICS
       Exit status is 0 for no differences during any comparison, 1 for some differences, 2 for trouble.

IDENTIFICATION
       Author: Walter F. Tichy.
       Manual Page Revision: 5.5; Release Date: 1993/11/03.
       Copyright (C) 1982, 1988, 1989 Walter F. Tichy.
       Copyright (C) 1990, 1991, 1992, 1993 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, Software--Practice & Experience 15, 7 (July 1985), 637-654.



GNU                                                        1993/11/03                                                 RCSDIFF(1)