# dpkg --force-all --purge smbclient
dpkg: warning: overriding problem because --force enabled:
dpkg: warning: package is in a very bad inconsistent state; you should
 reinstall it before attempting a removal
(Reading database ... 354638 files and directories currently installed.)
Removing smbclient (2:4.1.6+dfsg-1ubuntu2.14.04.11) ...
dpkg: error processing package smbclient (--purge):
 unable to delete control info file `/var/lib/dpkg/info/smbclient.md5sums': Is a directory
Processing triggers for man-db (2.6.7.1-1ubuntu1) ...
Errors were encountered while processing:
 smbclient