Connect to database defined by rails databae.yml when on a server

db_connect.sh

#! /usr/bin/env bash

USERNAME=`cat config/database.yml | grep username | awk {'print$2'}`
PASSWORD=`cat config/database.yml | grep password | awk {'print$2'}`
HOST=`cat config/database.yml | grep host | awk {'print$2'}`
DATABASE=`cat config/database.yml | grep database | awk {'print$2'}`

mysql -h $HOST -u $USERNAME -D $DATABASE -p$PASSWORD