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2.8 Invoking rcsdiff

rcs diff [options] file …
(or “rcsdiff” instead of “rcs diff”)

The rcsdiff command runs diff to compare two revisions in an RCS file. See Invoking diff in The GNU Diffutils Manaual.


(zero, one, or two times) Name a revision. If given two revisions (‘-rrev1 -rrev2’), compare those revisions. If given only one revision (‘-rrev’), compare the working file with it. If given no revisions, compare the working file with the latest revision on the default branch.


See Substitution mode option.


See Misc common options.


See Misc common options.


See Date option.

These options have no effect, and are included solely for consistency with other commands (see Environment): -T.

Additionally, the following options (and their argument, if any) are passed to the underlying diff command:

-0, -1, -2, -3, -4, -5, -6, -7, -8, -9, -B, -C, -D, -F, -H, -I,
-L, -U, -W, -a, -b, -c, -d, -e, -f, -h, -i, -n, -p, -t, -u, -w, -y,
long options (that start with "--")

(Not all of these options are meaningful.)