dpkg -l | grep language-pack:
ii language-pack-en 1:15.10+20151016 all translation updates for language English
ii language-pack-en-base 1:15.10+20151016 all translations for language English
ii language-pack-gnome-en 1:15.10+20151016 all GNOME translation updates for language English
ii language-pack-gnome-en-base 1:15.10+20151016 all GNOME translations for language English
dpkg -l | grep language-pack: pack-en- base 1:15.10+20151016 all translations for language English pack-gnome- en 1:15.10+20151016 all GNOME translation updates for language English pack-gnome- en-base 1:15.10+20151016 all GNOME translations for language English
ii language-pack-en 1:15.10+20151016 all translation updates for language English
ii language-
ii language-
ii language-
env | grep LANG:
LANG=en_US.UTF-8
sudo env | grep LANG
LANG=en_US.UTF-8