to import a rules file or control file and analyze rules from it, you can use the following sequence of commands:
cm import ravel ReadRelationalDRCFile rules.ravc
cm analyze ( Design "the_design" ) RELA_FOO 0
cm analyze ( Design "the_design" ) RELA_BAR 0
The RELA_ names are the CM attributes of the corresponding Ravel rules. You can discover them either in the journal file after interactively analyzing a rule, or in the tooltip you get when you hover the mouse over the "# Violations" table header in the worksheet of the rule. This works in -nographic mode too.