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Check and email debian updates
# Download only; package files are only retrieved, not
# unpacked or installed.
apt-get -dqq update
apt-get -dyqq upgrade
has_upgrades=$(apt-get -s upgrade | grep ^Inst)
if [ "$has_upgrades" ] ; then
echo "$has_upgrades" | mail -s \
"Updates for MyCoolServer - $(hostname) on $(date +%Y-%m-%d)" \
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