in reply to Re^3: How to eliminate redundancy in huge dataset (1,000 - 10,000)
in thread How to eliminate redundancy in huge dataset (1,000 - 10,000)

... or paragraph mode.

$/ = q{};

Probably safest to localise it's scope to avoid unwanted side effects.

... { local $/ = q{}; while ( <> ) { ... } } ...

Cheers,

JohnGG