RCSDIFF(1)                      GNU(1992/04/10)                      RCSDIFF(1)


NAME
      rcsdiff - compare RCS revisions

SYNOPSIS
      rcsdiff [ -ksubst ] [ -q ] [ -rrev1 [ -rrev2 ] ] [ -Vn ] [ -xsuffixes ] [
      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
      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 -V and -x.  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.




10/89                                                                    Page 1

RCSDIFF(1)                      GNU(1992/04/10)                      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: 1.1; Release Date: 1992/04/10.
      Copyright © 1982, 1988, 1989 by Walter F. Tichy.
      Copyright © 1990, 1991 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, Software--Practice &
      Experience 15, 7 (July 1985), 637-654.







































Page 2                                                                    10/89