# 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