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The sccsdiff command determines (and prints on the standard output) the differences between any two versions of an SCCS file. The versions to be compared are specified with sccsdiff -r in the same way as with get -r. SID numbers must be specified as the first two arguments. The SCCS file or files to be processed are named last. Directory names and a lone hyphen are not acceptable to sccsdiff.
The following is an example of the format of sccsdiff:
$ sccsdiff -r3.4 -r5.6 s.abcThe differences are printed the same way as by diff.