postgresql记录

First: If your install isn't already damaged, you can drop unwanted PostgreSQL servers ("clusters") in Ubuntu using pg_dropcluster. Use that in preference to a full purge and reinstall if you just want to start with a freshly initdb'd PostgreSQL instance.

If you really need to do a full purge and reinstall, first make sure PostgreSQL isn't running. ps -C postgres should show no results.

Now run:

apt-get --purge remove postgresql\*