Hmm, so there's a Debian package "mencal" -- that's "menstrual calendar" -- which prints calendars like cal(1) but with certain days in ... red. Yes, it's written in perl.
And why not, Paul -- Paul Makepeace ....................................... http://paulm.com/ "What is quids in in German? Touching myself so it *really* feels good!" -- http://paulm.com/toys/surrealism/