[Zope] cron

[Chris Herrnberger]

Greetings;

Was reading up on zope labs on who to use cron and wget to call zope functions 
and Im almost there. 

What I would like to do is set a cron job to pack the db and flush the cache 
on a regular basis. Using the following URL on a test machine I can get there 
almost;

http://XXXXX:xxxx@localhost:8181/Control_Panel/Database/manage_cacheGC

but I am at a loss on how to activate the 'minimize' function as I dont know 
how to call it. Same scenario for 'pack' in ~/Database/manage

Any clues would be greatly appreciated, or direction towards some docs on an 
alternative way of routinely packing the db and cleaning the cache..

Best and many thanks

/ch