PostgreSQL
export PGDATA=/usr/local/var/postgres rm -rf $PGDATA initdb -D $PGDATA createuser -a -d -P $USER createdb -U $USER $DB dropdb -U $USER $DB
export PGDATA=/usr/local/var/postgres rm -rf $PGDATA initdb -D $PGDATA createuser -a -d -P $USER createdb -U $USER $DB dropdb -U $USER $DB