dotfiles/bin/flush-dns

#!/usr/bin/env bash

shopt -s extglob

OS=$(uname -s)
REL=$(uname -r)

function sorry()
{
    echo "Sorry. I do not know how to flush the DNS on this OS."
    echo "Once you find out, edit $(readlink ${0})."
    exit 1
}

case ${OS} in
    Darwin) PROD_VER=$(sw_vers -productVersion)
            case ${PROD_VER} in
                10.10?(.[0-3])) sudo discoveryutil mdnsflushcache
                                ;;

                     10.6?(.*)) sudo dscacheutil -flushcache
                                ;;

                             *) sudo killall -HUP mDNSResponder
                                ;;
            esac
            ;;

         *) sorry
            ;;
esac

exit 0