https://www.ibm.com/docs/en/spss-statistics/32.0.0?topic=ccf-sdiff-subcommand-command
SDIFF Subcommand (CCF command)
sdiffccfcommand
https://manpages.ubuntu.com/manpages/questing/man1/sdiff.1.html
Ubuntu Manpage: sdiff - side-by-side merge of file differences
side-by-side merge of file differences
ubuntumanpagesdiffsidemerge
https://cygwin.com/pipermail/cygwin/2002-October/085556.html
sdiff related.....
sdiffrelated