You can use the ternanry operator to save you typing print twice: 
print exists $a{$_} ? $a{$_} : 'Everything else', "\n";

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This is how I use the ?:.

لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re^2: Not getting desire output by using switch statement in Perl by choroba
in thread Not getting desire output by using switch statement in Perl by rammohan

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