cat /etc/cleardns/upstream/domestic.conf | sed 's/^[ \t]*//g'| sed 's/[ \t]*$//g'| tr -s '\n'| sed '/^#/d'| sed '/^\/\//d' > /etc/cleardns/upstream/domestic
cat /etc/cleardns/upstream/foreign.conf | sed 's/^[ \t]*//g'| sed 's/[ \t]*$//g'| tr -s '\n'| sed '/^#/d'| sed '/^\/\//d' > /etc/cleardns/upstream/foreign