CUR_USER=$(whoami 2> /dev/null || echo ~ | sed 's/.*\///');\
echo $LANG | grep -qE '^(en_US.UTF-8|C.UTF-8|C)$' || export LC_ALL=C;\
if [ "$CUR_USER" = "root" ] || ( groups "$CUR_USER" | grep -E '\<(sudo|wheel)\>' ); then \
  sudo -K && sudo -nu $CUR_USER uname > /dev/null && sudo -n uname > /dev/null;\
fi