Start|Stop PostgresSQL Service on Mac

The idea comes from this post: PostgreSQL startup items for MacOS X

With a little refinement, I have a new script for those who install PostgresSQL from a dmg package as me. This is my pgsql_svr.sh

#!/bin/sh                                                                                                   

start(){
    echo "Starting PostgreSQL"
    sudo -u postgres /Library/PostgreSQL/9.1/bin/postmaster -i -D /Library/PostgreSQL/9.1/data &
}

stop(){
    echo "Stopping PostgreSQL"
    sudo -u postgres /Library/PostgreSQL/9.1/bin/pg_ctl -D /Library/PostgreSQL/9.1/data stop
}

restart(){
    echo "Restarting PostgreSQL"
    stop
    start
}

usage(){
    NAME=`basename $0`
    echo "Uasage: "
    echo "$NAME start|stop|restart"
}

if [ "$1" = "start" ] || [ "$1" = "stop" ] || [ "$1" = "restart" ]; then
    $1
else
    usage
fi

NOTE: You need sudo to run this shell script.