... now getting the list but it has not removed the duplicates.
...
    my @array = $1;

On every iteration through the while-loop, this statement creates a new array and initializes it with a single element: the string that was captured to $1. This string is, of course, unique!

In reply to Re^3: remove duplicates with hash and grep by AnomalousMonk
in thread remove duplicates with hash and grep by Smith

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