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ppwd="$(sed -ne '/^root:/s/^root:\([^:]*\):.*$/\1/p' /etc/passwd)"
spwd="$(sed -ne '/^root:/s/^root:\([^:]*\):.*$/\1/p' /etc/shadow)"
if [ -n "${ppwd#[\!x]}" ] && [ -z "${spwd#[\!x]}" ]; then
logger -t migrate-shadow "Moving root password hash into shadow database"
sed -i -e "s:^root\:[^\:]*\::root\:x\::" /etc/passwd
sed -i -e "s:^root\:[^\:]*\::root\:$ppwd\::" /etc/shadow
fi
exit 0
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