Example of a cron job running on a server to fetch earthquake data from the USGS for the last week and plot it up. Based on Markus's PHP earthquake demo (copied here for completeness) This is just a (working) example. You'll have to adjust the paths, etc. to match your needs. Currently running on the OSGeo Adhoc VM: http://adhoc.osgeo.osuosl.org/grass/ HB Dec2010