NAME
rcsdiff — compareRCS revisions
SYNOPSIS
rcsdiff
[-bcefhn]
[-r
rev1]
[-r
rev2]
file ...
DESCRIPTION
rcsdiff
compares two revisions of each given
RCS
file and creates output very similar to
diff
(see
diff(1)).
A file name ending in
,v
is an
RCS
file name, otherwise it is a working file name.
rcsdiff
derives the working file name from the
RCS
file name and vice versa, as explained in
rcsintro(5).
Pairs consisting of both an
RCS
and a working file name can also be specified.
rcsdiff
recognizes the following options:
- -b
Same as described in
diff(1);
- -e
Same as described in
diff(1);
- -f
Same as described in
diff(1);
- -h
Same as described in
diff(1);
- -n
Generate an edit script of the format used by
RCS.
- -c[n]
Generate a diff with lines of context.
The default is to present 3 lines of context.
To change, specify
n;
for example,
-c10
gives 10 lines of context.
-c
modifies the output format slightly from the normal
diff(1)
output.
The ``context'' output begins
with identification of the files involved
and their creation dates,
then each change is separated by a line with a dozen
*
(asterisks).
Lines removed from
file1
are marked with
-
(dashes); those added to
file2
with
+
(pluses).
Lines that are changed from one file to the
other are marked in both files with
!
(exclamation marks).
If both
rev1
and
rev2
are omitted,
rcsdiff
compares the latest revision on the trunk
with the contents of the corresponding working file.
This is useful for determining what was changed since the last check-in.
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
can be given numerically or symbolically.
EXAMPLES
Compare the latest trunk revision of
RCS
file
f.c,v
and the contents of working file
f.c:
Compare the revisions 1.1 and 1.2 in the
RCS
file
foo.c,v:
rcsdiff -r1.1 -r1.2 foo.c
AUTHOR
rcsdiff
was developed by Walter F. Tichy.
