Drop a database from postgres
in bash
type psql
\list or \l to list your database
terminate any connections by using the following command. example if databse named YourDatabase
select pg_terminate_backend(pid) from pg_stat_activity where datname=’YourDatabase’;
*use procid instead of pid for older versions of postgres
DROP DATABASE “YourDatabase”;
Now your database is gone.
https://stackoverflow.com/questions/7073773/drop-postgresql-database-through-command-line for reference