


RCSDIFF(1)                                             RCSDIFF(1)


NAME
       rcsdiff - compare RCS revisions

SYNOPSIS
       rcsdiff [ -ksubst ] [ -q ] [ -rrev1 [ -rrev2 ] ] [ -V[n] ]
       [ -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.





GNU                         1992/07/28                          1





RCSDIFF(1)                                             RCSDIFF(1)


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.
       Revision Number: 5.4; Release Date: 1992/07/28.
       Copyright 1982, 1988, 1989 by Walter F. Tichy.
       Copyright 1990, 1991, 1992 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.




































GNU                         1992/07/28                          2


