{{ score }}
  # Shows the current value of environment variables. If you use this
# command with out any parameter, it will list all environement
# variables and there current value als pair of name and value like
# this: SHELL=/bin/bash.
printenv

# If you run the command with one ore more variable names, it will list
# only the current values hold by the variables, one variable's value per
# line. BE AWARE, that you should NOT use the $ sign in front of the
# asked variables!
#
# The following answers with four lines, in each the current value of
# one variable.
printenv SHELL EDITOR USER HOME