Bogofilter training on KMail mailboxes?

[Rob Blomquist]

I am attempting to use bogofilter after a couple of years of running 
SpamAssassin.

Under SA, it was easy to teach it about spam: every night I ran a cron job on 
my spamfolder, which has "maildir" style directories.

according to what I have read on the bogofilter page, all I need to do is run
"bogofilter -s ~/.Mail/SpamPile/cur/, and the filtering will be done.

Last night, while in ~/.Mail/SpamPile/cur/ I tried to run bogofilter -s, and 
it hung all night. 

Today I tried while in ~ to run "bogofilter -s .Mail/SpamPile/cur/" and I got 
"Extra arguments given, first: .Mail/SpamPile/cur/. Aborting."

It appears to want a command format I don't understand. Thoughts?

Rob