The following sdiff options have the same meaning as for diff. See diff Options, for the use of these options.
-a -b -d -i -t -v -B -E -I regexp -Z --expand-tabs --ignore-blank-lines --ignore-case --ignore-matching-lines=regexp --ignore-space-change --ignore-tab-expansion --ignore-trailing-space --left-column --minimal --speed-large-files --strip-trailing-cr --suppress-common-lines --tabsize=columns --text --version --width=columns
For historical reasons, sdiff has alternate names for some options. The -l option is equivalent to the --left-column option, and similarly -s is equivalent to --suppress-common-lines. The meaning of the sdiff -w and -W options is interchanged from that of diff: with sdiff, -w columns is equivalent to --width=columns, and -W is equivalent to --ignore-all-space. sdiff without the -o option is equivalent to diff with the --side-by-side (-y) option (see Side by Side).