package apackage;
my $test="my_variable_name";
my $default_value="the value I set";
$$test = $default_value;
print "the value of \$my_variable_name = $my_variable_name\n";

package main;
$my_variable_name = "A new value";
our $test;
print "the value of \$my_variable_name = $my_variable_name\n";
print "the value of the package variable = $apackage::my_variable_name\n";


##</code><code>##

the value of $my_variable_name = the value I set
the value of $my_variable_name = A new value
the value of the package variable = the value I set


##</code><code>##

$/  =  q#(\w)#  ;  sub  sig { print scalar reverse  join  ' ',  @_  }  sig
map { s$\$/\$/$\$2\$1$g && $_ } split( ' ', ",erckha rlPe erthnoa stJu" );