-apt-get install -y --fix-missing --no-install-recommends apt-utils >/dev/null 2>&1 -apt-get install -y --fix-missing nfs-common netbase cifs-utils kmod rsync -apt-get install -y --fix-missing dracut dracut-network dracut-config-generic +apt-get install -y --fix-missing --no-install-recommends -qq apt-utils \ +nfs-common netbase cifs-utils kmod rsync dracut dracut-network \ +dracut-config-generic
注意缩进。