For listing/downloading dashboards from Grafana.net community following commands can be used. There is no extra configurations needed for these commands.
list - Lists all the dashboards and if filter is present then filters out the dashboards according to it.
$ wizzy list gnet dashboards <FILTER>
For example, for listing all Grafana.net dashboards, use:
$ wizzy list gnet dashboards
For example, for listing all Grafana.net dashboards with prometheus as datasource, use:
$ wizzy list gnet dashboards ds=prometheus
download - Downloads a dashbord json from Grafana.net and stores under dashboards directory.
$ wizzy download from-gnet dashboard DASHBOARD_ID REVISION_ID
$ wizzy download from-gnet dashboard 328 3