Also keep in mind that you may not need to initialize
them at all - perl can usually figure out what you want to do.
For example
my $var1;
$var1++;
print "Var1 is now $var1\n";
my $var2;
$var2 = "Foobar";
print "Var2 is now $var2\n";
Both of the above will work fine. The values start
out undefined, and in most cases (but not all)
they do not need an explicit initialization.
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