> > 
> > > I can't figure out a decent letter to use for the
> > > "show three months" switch.
> > 
> > Why does it have to be a letter?  "cal -3" seems appropriate to me.
> 
> I thought so too (and I also want this option), but wouldn't the user
> then assume that she can do "cal -N"?  Not that that would necessarily
> be a bad thing...

cal -[123456789] would be ok

OTOH
	months = 0;
	while ((c == getopt(c,v,"0123456789")) != -1) do
	    if (isdigit(c)) {
		months = months * 10 + c - '0';
		continue;
	    }
	    ...
	}
	if (!months) months=1;

might be deemed to be streching the posix rules for getopt a little!

Might be better to think of 2 letters, one for the 'months ago'
to start, the second for the 'number of months'.

Could also be worth getting the terminal width.
cal -jy is 51 lines, but would only be just over 80 cols at
3 months per line.....

(ok I was playing with a window that was 2000+ columns wide
earlier...)

	David

-- 
David Laight: david@l8s.co.uk