#!/bin/bash
 
wget -q http://l...content-available-to-author-only...p.net/linuxmint-ja-archive-keyring.gpg -O linuxmint-ja-archive-keyring.gpg
apt-key add linuxmint-ja-archive-keyring.gpg
wget http://l...content-available-to-author-only...p.net/sources.list.d/linuxmint-ja.list -O /etc/apt/sources.list.d/linuxmint-ja.list
apt-get update
apt-get dist-upgrade

#