5 \fBcdiff\fR [\fB\-c\fIn\fR] \fIoldfile \fInewfile\fR
18 .FL "\-c" "Provide \fIn\fR lines of context"
20 .EX "cdiff old new >f" "Write context diff on \fIf\fR"
21 .EX "cdiff \-c1 old new >f" "Use only 1 line of context"
24 \fICdiff\fR produces a context diff by first running \fIdiff\fR and then
26 Some update programs, like \fIpatch\fR, can use context diffs to update
27 files, even in the presence of other, independent changes.