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# apt-get download `apt-cache show linux-image-extra-* | grep 'Package: linux-image-extra-' | grep generic | awk '{print $2}'`
# dpkg -i --ignore-depends *.deb
dpkg: error: --ignore-depends needs a valid package name but 'linux-image-extra-4.10.0-14-generic_4.10.0-14.16~16.04.1_amd64.deb' is not: illegal package name in specifier 'linux-image-extra-4.10.0-14-generic_4.10.0-14.16~16.04.1_amd64.deb': character '~' not allowed (only letters, digits and characters '-+._')

Type dpkg --help for help about installing and deinstalling packages [*];
Use 'apt' or 'aptitude' for user-friendly package management;
Type dpkg -Dhelp for a list of dpkg debug flag values;
Type dpkg --force-help for a list of forcing options;
Type dpkg-deb --help for help about manipulating *.deb files;

Options marked [*] produce a lot of output - pipe it through 'less' or 'more' !