Install moosh: http://moosh-online.com/ Using moosh create a lot of courses (around 1000 will be more than enough). To do so run command moosh course-create coursename {1..255} few times changing coursename. Note: it'll add courses to default 'Misc' category. If you want to add courses to another category specify category id using -c option e.g. moosh course-create -c 5 course{1..255} Go to administration -> courses -> manage courses and categories Select your category. From dropdown menu select 'delete' Confirm deletion Verify that deletion completed and all courses along with category are deleted.