post_install(){ echo "For security on multi user systems, a new brltty group should be" echo "created. A new random key should be put in /etc/brlapi.key" echo "and only braille users and root should have read access to this" echo "file." } post_upgrade(){ echo "For security on multi user systems, a new brltty group should be" echo "created. A new random key should be put in /etc/brlapi.key" echo "and only braille users and root should have read access to this" echo "file." }