These options control the creation of backup files when you save a modified file to disk. You can control where backups are stored, how many old backups to keep and options for controlling the style of the backup file name.
"After using Brief for many years, I did not look forward to learning
vi or Emacs on my UNIX machine. CRiSP came to the rescue. The program
has now grown and matured to the point where it has become much better
than Brief ever was."