/home/quentin# dpkg -l | grep flasher
ii  flasher                                               3.12.1                                              amd64        Flashing utility
iHR flasher-3.5                                           2.5.2.2                                             i386         (aucune description n'est disponible)#description no available
root@quentin:/home/quentin# dpkg -- purge $flasher
dpkg : erreur : requiert une option d'action # need action' option :/

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' !
root@quentin-1215B-1215B:/home/quentin#