#! /bin/sh

# Debian update check script.

report_address="some@your.mail-address.hoge "
tmpfile_prefix=ducs


LC_ALL=C
export LC_ALL
LANG=C
export LANG

rm -f /tmp/"$tmpfile_prefix"-??????-[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]
date=`date --iso-8601`
tmpfile=`tempfile --directory /tmp --prefix "$tmpfile_prefix"- --suffix "-$date" --mode 600`

apt-get update --quiet --quiet
apt-get dist-upgrade --quiet --quiet --download-only --yes
apt-get dist-upgrade --simulate \
| tee "$tmpfile" \
| egrep --quiet "^0 (packages|upgraded)" \
|| mail -s apt-get-`hostname` $report_address < "$tmpfile"

chmod 400 "$tmpfile"
# rm -f "$tmpfile"

# revision: $Id: check-update.txt,v 1.3 2004/08/17 07:23:04 yuya Exp $
# http://www.j96.org/~yuya/