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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 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 pro-
       duced 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)