-.Pp
-.Nm Env
-executes
-.Ar command
-after modifying the environment as
-specified on the command line. The option
-.Ar name=value
-specifies
-an environmental variable,
-.Ar name ,
-with a value of
-.Ar value .
-The option
-.Sq Fl
-causes
-.Nm env
-to completely ignore the environment
-it inherits.
-.Pp
-If no command is specified,
-.Nm env
-prints out the names and values
-of the variables in the environment, with one name/value pair per line.