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 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 -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 corresponding 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)