my $test="my_variable_name";
my $default_value="the value I set";
*$test = $default_value;
#*{$test} = $default_value;
#*{"$test"} = $default_value;
#*{"$test"} = \$default_value;
#*{"$test"} = \&default_value;
print "the value of \$my_variable_name = $my_variable_name\n";
$my_variable_name = "A new value";
print "the value of \$my_variable_name = $my_variable_name\n";