In arch，假设安装的group有base, base-devel, gnome:
ALL=$(pacman -Qqe);BASE=$(pacman -Qqg base);BASE_D=$(pacman -Qqg base-devel);GNOME=$(pacman -Qqg gnome);echo -e "base\nbase_devel\ngnome\n${ALL}${BASE}\n${BASE}\n${BASE_D}\n${BASE_D}\n${GNOME}\n${GNOME}"|sort|uniq -u